Mass Effect 3

Lets say you went through the entire game without Hijacking a Mech? well it happens.. and since you cannot do it in multiplayer and you don't want to start a new play through just yet?

WELL THERE'S HOPE!

Your game automatically brings you back to before the battle at Cerberus HQ. Inside the hanger you start in you will face a group of troopers, Centurions, Nemesis, AND an ATLAS MECH right off the bat.

What i did was order EDI and my other companion to stay behind the shuttle so they wont do any extra damage to the mech and start making pot shots with a Mantis V at the Mech while clearing the troopers and such from flanking you. after aboutt 3-4 shots to the canopy the Canopy will break and you can snipe the Pilot right out just run and press "A" to jump inside!

*ACHIEVEMENT UNLOCKED*

What you will need to do is equip a sniper rifle. When fighting an Atlas mech, stay in cover and only fire sniper shots at the glass in front. After a few shots, the glass will break. Once the glass is broken, kill the pilot with your sniper rifle. Once he is dead, run over to the mech and press A to climb in.

Any questions just ask in the comments.

Another really easy Atlas to hijack is the Mech that is dropped near the end of the "From Ashes" DLC. When it gets dropped near the life pod, I just hid in the building until it came close, pulled out my shotgun and let loose on the glass and broke the glass. Once the glass was broken, I took out my assault rifle, killed the driver and hijacked it. Just got the achievement! :) Just an alternate way.

tl; dr version:

1. Get the Grissom Academy: Emergency Evacuation mission from Specialist Traynor after the second priority mission is complete.

2. Go to Petra Nebula and board the Grissom.

3. Fight your way to the end of the mission that takes place in the shuttle bay.

4. Grab the unmanned Atlas before the shuttle bay and use it to take out as many Cerberus footsoldiers as you can.

5. Another Atlas with another wave of Cerberus troops will appear. Kill the troops and exit the Atlas once you've killed everything except the new Atlas under Cerberus control. NOTE: This Atlas will focus MOST of its attention on the students and it will fire MOST of its shots at them. The barrier protecting the students is very strong, but its strength can be viewed at all times in the upper right corner of the screen.

6. While the Atlas is firing at the students, use whatever means necessary to deplete the Atlas' shields, then concentrate on shooting the glass.

7. Once the Atlas is down to just armor and armor is around halfway gone, the glass will break.

8. Use a headshot from a sniper rifle (or possibly Vindicator Assault Rifle) to kill the Atlas pilot.

9. Run up to the Atlas and press A to remove the dead pilot and enter the Atlas.

10. *achievement chime*

NOTE:

If you dismount the first Atlas before killing all the troops or before it being destroyed, a Cerberus Engineer will fix the shields and get in and pilot it. The glass is ALREADY broken on this Atlas. You MIGHT be able to hijack this Atlas without having to break the glass. I didn't get a chance to try, but it might be something worth a shot at trying. If anyone finds out if this method will work, please post in comments and I will place it in the solution (or you can write your own solution).

++More Detailed Solution++

A really easy place to get this achievement is during the Grissom Academy: Emergency Evacuation mission in the Petra Nebula. I did this between the 2nd and 3rd priority missions. You get this non-priority mission from Specialist Traynor after you complete the Turian Primarch priority mission. You'll know you have the mission when you see Petra Nebula on the galaxy map (there will be a "Rescue Students" tag under the name of the nebula when you hover over it with the galaxy map cursor).

This is the very first place I saw the Atlas mech, though the Atlas may appear sooner if you do other missions before this one.

++Popping the Achievement++

To get this achievement is very simple. Just fight through the mission until you reach the shuttle bay at the end of the mission. Right before you enter the shuttle bay will be a Cerberus Engineer standing with his back to you and next to an unoccupied Atlas. 2 headshots from a Lv5 Viper Sniper rifle will take out the Engineer without him firing on you. Jump into the Atlas and enter the shuttle bay.

Now use this Atlas to kill all the Cerberus troops. Toward the end, another wave of Cerberus troops will appear. Take them out as well.

With this other wave of troops comes another Atlas mech. Once you've destroyed all of Cerberus' foot soldiers, press the Y button to jump out of the Atlas (if it hasn't been destroyed yet). Equip your assault rifle or sniper rifle and use whatever techs you can to drop the Atlas' shields.

Once the Atlas is armor only, start shooting the glass cover that houses the Atlas pilot. About halfway through the armor the glass will break. At this time, pull out your sniper rifle and get a headshot on the Atlas pilot for an instant kill. The Vindicator Assault Rifle may work as well.

Once you kill the pilot, simply walk up to the Atlas and press A when prompted to do so, Shepard will pull the dead pilot out and enter the Atlas and the achievement will pop.

++Note About this Atlas++

Why this Atlas is so easy is that it will focus MOST of its attention on the students (the student barrier strength an be seen at all times in the upper right hand corner of the screen and it will fire most of its shots at the students (don't worry, the barrier is very strong). During this time you're free to unload clean shots at the glass protecting the pilot without having to duck into cover so much. Once the Atlas starts losing armor it will focus more attention toward you, so be careful.

Good luck, enjoy the game and hope this solution was helpful!

Make sure you have a sniper rifle on you. When you see an atlas mech just start shooting at the glass till it breaks. The glass will break when there's about half of the armor health bar left. Once it breaks take out the driver. then you be able to take control of it an achievement popped. Its might take some practice to get it with out destroy the Atlas.

Also i take no credit for the video below. From IGN

This is relatively simple, but it's also rather easy to bypass and not earn throughout the campaign. Before you begin you need to make sure you have the Mantis without mods in your load out. I've tried several combinations of rifle, most work, but this one seems to fastest without destroying the Atlas. You can also do this on any difficulty, but for the sake of making this easier use narrative or easy.

Once you're ready, find at Atlas, the video below takes place during the start of the Illusive Man's Base. You need to make sure your squad don't cause any damage to the Atlas, so have them hide off to the side and cover you. From here you can concentrate on the Atlas yourself. You need to shoot the window that protects the driver several times until it breaks. You can then kill the pilot. Once the pilot is dead you can then make your way up to the Atlas and press "A" to pilot it yourself.

You will encounter an Atlas while completing most Cerberus N7/Side Missions, but two areas where you can find the Atlas are the "Grissom Academy", "From Ashes (DLC)", "Citadel Invasion" and the "Illustive Man's Base". If you miss all of these after completing the game you can start the Illusive Man's Base again as you will be placed back on the Normandy just before this mission.

Using a Scorpion Hand Pistol to break the glass;



Alright I was having lots of trouble with this achievement seemed every time I tried with a sniper rifle the Atlas blows up when shooting the driver out. Here is an Alternative I found using a Scorpion pistol instead of a sniper. Before you start any mission with an Atlas in it equip the Scorpion gun and make sure you bring a second gun with you like a light weight sniper rifle or a regular rifle your choice bring something that doesn't do much damage only going to need a second gun to kill the trooper out of the driver chair. Shoot the and aim towards the glass of the Atlas, it almost like a grenade launcher with stickys so you have to kind of wait for them to explode but it does great damage and its even fun to use in the game, it pretty much blows everything up. Once you see that glass broken and shot out the trooper, you can run up towards it and hop in hitting (A).

Scorpion Location ;
During Priority: Female Krogan rescue mission Sur’Kesh mission, when Mordin asks you to reactivate the elevator power source. Look for it on the floor in the corner next to power switch. You can also do the achievement on this mission since there is an Atlas here on this level just keep in mind your team mates will shoot at the Atlas too.

Follow the video below the mission he did it on is on the DLC content called "From Ashes" you can do this on any difficulty or any mission that has an Atlas in it. I did it on the mission "Illusive Man's Base" also in the DLC content.

Credit for video goes to OmegaRed16 Thank you.

This video shows both the EARLIEST, and EASIEST possible way to grab yourself this Achievement.

Full instructions are given in the video, along with hints and tips.

I had no luck with the sniper rifle. The whole thing blows up before the glass breaks (for me anyway).

I got it done at the biotic/engineer school, where you first see Jack in ME3. After you get in the first Atlas and kill the Cerberus guys in the next room, another Atlas will spawn. After a couple regular Atlas bullets to the glass, it was broken and the operator was dead. I jumped out of mine and into that one, unlocking the achievement.

This was under normal difficulty. The Atlas may blow up in lesser difficulties.