I'm not that lucky. I get shotgunned in the face or Quick scoped in some of my old matches. Sometimes I switch it up with my M16A4 w/ either Heartbeat or Noob tube class (Scavenger, Cold Blooded or Stopping Power, SitRep) and my Sniper Class (Sleight of hands, cold blooded, & ninja) with a C4 (unless played in Domination matches) and camp out on a flag spawn.
The suicide bomber thing works. I plant the C4 and lay on top of it. Then repeatedly switch weapons to make it look like I'm dead. Then when two or three people gets there taking the flag & detonate it.
Anyways, yeah, I switch it up to somewhat confuse them. If they think I have Assault class, they would probably use sniper, but really am using a knife runner class. So I switch it up sometimes or stay the same class and rethink my strategies on the move.
Here's my current callsign & clan tag.
Idk why I kept it like this, probably I like to knife run around the map.