I only play hardcore,
Team Deathmatch: Camp corners the whole game and noob tube
Kill Confirmed: Camp tags and camp corners and don't collect tags + Noob tubes
Domination: I'll play every now and then when my whole team is on, but I can win a game of search basically with 5 noobs on my team, I can't win a game of domination without a team. For the most part domination is a noob tube + ied + c4, the b flag and it gets annoying.