Titanfall 2

Story related, cannot be missed.

Cooper's Logbook:

My neural link with BT is improving - I managed to kill Kane, a mercenary working for the IMC. Now we're back on track towards the rendezvous point, in search of Major Anderson. We're still being hunted. But now that we've got Kane's helmet radio, we can at least eavesdrop on enemy communications.

Pilot Helmets 4

Objectives:

1. Take BT's shortcut to the rendezvous point.
   BT suggests taking a shortcut, along the way pick up the third Titan Loadout, Scorch and then enter the cave containing a large IMC facility. Kill all Grunts and Titans in your way. You will also come across the fourth Titan Loadout, Brute inside the cargo area.
2. Raise the cargo lift.
   Shortly after finding the Brute Titan Loadout, you'll need to raise the cargo life. Disembark from BT, search for and activate the cargo lift.
3. Return to BT.
   Simply return to BT after activating the cargo lift.
4. Activate the cargo lift.
   BT will be taken by a crane. Activate the cargo lift to end Chapter 1 of this mission as you prepare to save BT.

Pilot Helmets 3

Objectives:

1. Recover BT.
   This is Chapter 2 of the mission and you'll need to make your way towards BT while you traverse through the facility. When you get to the section that looks like a factory of machines, the Some Shortcut! trophy will unlock.
2. Search for BT along the flow of the assembly line.
   Navigate through the assembly line factory being careful not to fall off the platforms.
3. Climb to the top of the urban assembly.
   Near the end of Chapter 2, you'll need to climb out of the urban assembly that you're trapped in and make your escape. As soon as you made it out of the urban assembly, the Incepted trophy will unlock.
4. Hitch a ride into the dome above.
   Jump onto a moving platform and watch as the dome forms a scenario battlefield.
5. Survive the IMC test scenario.
   Defeat all enemies in the IMC test scenario.
6. Defeat the Reapers.
   Titan Reapers will enter the test scenario. You have no Titan, so you have no choice but to defeat them as a Pilot. Once you defeated both Reapers, the I'm Not Locked in Here With You trophy will unlock. It should be noted that this trophy isn’t story related, kill the two Titans before moving on!
7. Escape the simulation dome.
   Once the Reapers are defeated, more enemies will spawn into the dome simulation. You will need to escape and BT has provided an escape route for you to take.

Pilot Helmets 2

Objectives:

1. Locate BT.
   Make your way through the cave and activate the Prowler towers.
2. Regroup with BT.
   After climbing the pods with Prowlers inside them, BT will contact you saying that he's free. Make your way towards his location so you two can regroup. Once you've found him embark with BT.
3. Escape the test facility with BT.
   The area is very hostile, so make your escape by following the waypoint.
4. Defeat Ash.
   Ash is the second boss fight of the game. I advise that you obtain the Coup de Grace trophy against her by killing Ash with a melee execution. Defeating her will end Mission 4: Into The Abyss (trophy unlocks here).
5. Escape the test facility with BT.
   After defeating Ash, escape the test facility with BT by following the waypoint.

Defeating Ash:

To defeat Ash, as soon as the battle begins, switch to the Expedition Titan Loadout because you're going to want Titan with a high firing rate weapon. Plus, Expedition has a Vortex Shield [] which will be very helpful for you. Ash pilots the Ronin Titan Loadout and has shields similar to Kane's, but she's much more mobile. You don't want to engage Ash in melee combat range because the Ronin Loadout has Sword abilities that can deal heavy damage. Keep your distance away from Ash at all times while using your Dash [] to avoid Ash's attacks such as her Arc Wave. Use your Vortex Shield as much as possible when you're not in cover and hide behind buildings to recharge if your shield is depleted.

While you’re fighting, you'll notice Ash disappearing. This is the Phase Dash Ability that Ronin Loadouts have and every time she uses this ability she will usually appear behind you or close by your location. Be sure to use the Dash to escape from her when she does so. Once you have your Titan Core at 100%, take down her shield, change to Brute Titan Loadout and use the Flight Core Ability as this will do extreme damage against Ash. Once you took Ash's Health Bar very low, get close to her and perform a melee attack with . If done correctly, you will destroy Ash's Ronin Titan with a melee execution, which will unlock the Coup de Grace trophy if you don't have it.