You begin this level in a room with some fighters and the new F'licta. As you can see, F'lickta dont like anyone, and will attack most anything they see. In the corridor outside go right and down the stairs. There are 2 drones hiding in the shadows here, and another drone will come down the stairs after you once they are acivated. In the terminal behind the drones, you recieve your mission objectives and some more backstory on why your here. After reading, go back up the corridor and use the recharger and pattern buffer. The next room you go in will activate a bunch of F'lickta and fighters, try and get them to fight.
After that, you can either go straight to the exit terminal (marked on the map durandal gave you by the unexplored corrider at the top left) or you can do some exploring. I didn't know this before I re-played the level, but there is a lot of ammo in caches all over the map. You'll have to kill a bunch of stuff to get it, but it is quite worth it. After that, it would be wise to recharge your shields, and then go to the end terminal and beat the level.