Firstly, When people say its full of campers its because you play the wrong game modes like TDM,Domination,HCTDM etc... Learn to play a real game like HCS&

or HCHQ and stop being a sore loser just because you can't get a kill
Anyway my best maps are,
1.Highrise, Reason being its so easy to end a S&

round in under 10seconds just by 2 people doing the shot spots to the spawn.
2.Wasteland, Reason is when we got a full party the other team gets 12 thumper shots going there way so again its easy to end games quick
3. Terminal, Everyone does the same thing on this map they run by burger town & stand by the entrance to the plane when they are planting & when defending they all sit in the plane and on that roof thing by the exploding tank, so its way to easy as you know where everyone is.