Most people treat it as a big deathmatch and don't even try to play as a team. Earlier a support refused to heal anyone because and I quote "If you die, you die that's how deathmatch works" and amazingly they were level 76. It saddens me that the Blitz community is more team oriented, well not really saddens but still, crossfire's community... its just sad Sure I could play with people on the forums but I dunno I've been called a "ragequitter" by a certain level 99, who I might add promotes killing pros over bots, aka "deathmatch style". So I dunno really. Lag also hurts crossfire big time, it hurts blitz too but crossfire much much more. You can stick a bomb to a guy in crossfire and lag will save him. I just don't have fun in crossfire anymore...
It what you have to deal with, with games like these. People in Blitz are a lot nicer since the people who want to deathmatch are in CF. I just wishmore people played it because I haven't been able to play XBL Blitz for about a month. Update is soon with new blitz and CF map so hopefully stuff changes.
I really would recommend trying to form a group that frequents the forums. You don't have to like or play with everyone from here, but it helps to have your name recognized by this community and will drastically improve your chance of finding better quality teammates/groups to play with. It can be difficult getting to be a regular in some of the more established groups, but my advice would be to keep playing with different people until you find a group that wants to play with you as much as you want to play with them. I came on here only knowing SHOW YOUR HEART and Zander Star originally, now I'm getting close to cleaning out my friends list again.