for the crook build (to keep it going after speedpull nerf) give the grom the 45 degree iron sights. For the mark 10 get concealment boost and get rami suppressor.
Also rework the artful dodger tree to have duck and cover aced, inner pockets aced, shockproof basic, dire need basic, and sneaky bastard aced. This lets you know sprint to reload cancel your guns. The dire need skill lets you make an enemy stagger when your armor breaks. This is amazing when you are using mark 10 to get ammo back or stun a group you dont kill with graze. This is because any enemy effected by graze with be affected by dire need. The shockproof basic is eh, sometimes it saves you when running to a place or when you dont see the taser. Doesnt help much but is nice none the less.

for the ctv build if you want to use it after speedpull nerf give the car-4 give it the concealment boost, rami suppressor, auto fire lock, stealth laser module, and orthogon upper receiver.
for the para give it rami suppressor and stealth laser module. (optional: auto fire lock)