I was in A3 during The Citadel. One minute we were cresting the hill and scanning ahead, then people were going down. I died immediately.
Got into spectate mode and could see two blues (enemies) moving across the hill from our position, northwards I guess... Silenced weapons, must be ninjas (baseball cap on one of them too I think, so possibly gangsters). They were quick too, by the time I'd moved into slotting, laughed with grizzly and found them they must have been nearly out of RA1...
I took a screenshot of A3's line formation:
http://steamcommunity.com/sharedfiles/f ... =444641687