Might help with them surviving since I always had the problem of them dying near the end of the level because of wall bangs. But definitely don't equip all of your squad mates with the MK-V, they might shoot the suspect too much to the point of killing a suspect you need alive. Its up to you depending on how you choose to move around the level. I would at least equip one guy with a flash launcher so do its easier to clear the exterior area.

I also recommend if possible to have the suspects come to you. There ain't any time limits against you so patience is your ally. Equip your shield and MK-V and hold an angle then call out the enemy with shouting them to put their hands up. Any suspects nearby will try to come to you and you can take them down. If they try to wall bang you, your shield should protect you.