Let's see... What would the enemy probably do to take down Revy? Sneak in 'tech hack' on the shields, then use missiles. Guardian Angel shield means there is a backup 'energy wall' possible to kick in even with personal shields down. Warp Barriers adds.. hmm... was this the 'rip incoming problems apart with our shields' mod? Omni tools means tech abilities and repairs. Nonlethal takedown package for the inevitable hostage or 'we want that person alive' situations. Is biotics options like using 'yank' to pull funiture in front of an incoming missile available while in the suit? Really, really need to train Biotics with Liara at some point...
Only change I would recommend on the setup above would be:
-[X] Shoulder 2 Left: (Hasta-S AMS Turret) -> -[X] Shoulder 2 Left: (Micro Missile AMS Turret) and prioritize it for anti missile work. Why? Because a LOT more ammo, meaning we can meet missile spam with anti-missile spam.
The hand held Pilum Launcher at first glance looks like a bad choice (not that much ammo? Or can more ammo be made with the Omnitool?), but this fight is in home base and/or home city. Getting more ammunition should not actually be that hard. If we had been further afield then the lascannon for 'unlimited ammo and shield penetration' would have been a no-brainer.
I understand the suit starts out with 6 units of power, each active Repulsor system takes 1 unit, flying takes 4 to 5 units, and shield barriers to cover others takes x power? Revy's personal suit really needs the upgraded power cores, then. Until it has, having lots of repulsors is basically suicide: Lots of firepower, but no mobility = paper tiger.