Call of Duty: Advanced Warfare

This Trophy is one of the more harder trophies on this game in my opinion, but I came up with a pretty good strategy to get it solo. First off in order to flip a map you have to beat round 25, after round 25 you'll be reset down too round 1 but the enemies will be abit tougher. Getting this first flip to happen will give you the trophy, There is also a trophy for beating round 25 a second time, called "Flip Flop"

Now the strategy I used to get it Solo was to play on the map bio lab on regular difficulty, using the Light class, and to keep circling around the map, while stoping briefly to take out enemies here and there, I strongly recommend to NOT camp or stop in any place for too long, Enemies will surround you so quickly if you don't keep moving, only stop briefly. I also recommend to not put to much focus on objectives (dog tags, intel, defusing bombs) they will give you more upgrade points if you complete them but your main focus should always be surviving, Also if there's a round that turrets spawn, try take them out as quick as possible, even during rounds work on getting rid of them.

Now for upgrades, Only upgrade between rounds. I always wait until round 8 before I use any upgrade points, I sometimes have to use some upgrade points to refill ammo if I get unlucky and enemies don't drop one of those green ammo boxes, but I try avoid that if possible. So anyway on round 8, I purchase the ARX-160 over my pistol and also got the Extended Mags attachment on it. I found that gun to be very effective for me personally.
Then after fighting through to wave 10, I then went and purchased as much Armor as I could and also put a couple of upgrades on weapon proficiency in Exo stats of the Exo upgrades console, and continued to upgrade them both until they were both maxed out at 10. Focusing on armor first but also giving some love to weapon proficiency. Once you have them both maxed out you should notice a huge difference in how strong you are and how quickly you can drop enemies.
After they're both maxed out you can finish upgrading your weapons with stock and grip upgrades.

Just keep circling the enemies around the map as best you can until the map flip happens, It was challenging for me at first as enemies can swarm you pretty quickly at points, if you notice its happening try just sprint away, but after you understand Exo survival its really not to bad.

Good luck all :)

Flipping a map means, that you have to play 25 Waves. Then the whole thing begin from start but now the enemies are stronger. My recommendation isto use the light class and save all your Upgradepoints until round 10 and then spend the, all for more health. Now whatever the level of your health is, upgrade the Weaponstrength to this level too. (Should be 7 or 8) And then upgrade your health to 10 and then the weaponstrenght. So, my Weapon-recommendation is the start MP and the Bal-27. Both with Laser-Marker, Rapid Fire and extended magazine. So, now to the map. I used the map recovery. It's the best in my opinion. You can hide in a building and you can nearly kill everything there. Sometimes you have to get away, but not often. If you play in Co-op with 2+ people you can sit there forever and you will not die. I also recommend that you play it with at least one extra person. Now the Setup for the game: Private Game, Difficulty: Normal, Supplies on. This is actually a very easy Trophy. You shouldn't have much problems with it.