That's a problem with Deathmatch mainly cause where there is an objective, people are forced to move to it.
The time limit that there is, is just too much if you ask me (2 hours wat), there should be a less forgiving time limit to force moves in that game mode, if the time limit ends with no team reaching the goal, both lose, in order to avoid one team camping after they get one kill, you always need to force people to complete the objective if you want movement, currently there is no such thing hence every match with snipers in it ends up as a boring long range poking match that takes more than an hour each time.
People are lazy, what did you expect? x3