Will add to this during Phase 2
All I have to say for now is to burn this one thought into your head.
If you get a kill... MOVE!
I dunno how many snipers I've found because I ran back and they were still sitting in the same roost that they killed me from.
1:0 is a lot better then 1:1 people. Don't give them a chance to get revenge. There's several good vantage points on every map, so utilize them.