How so? Have they disabled claymore teamkills in 1.2? (I have searched, but I only found posts ranting about what sucks in 1.2.)
If they have disabled claymore teamkills, it should make things easier. But I would rather they'd just colour code the damned skull-and-crossbones symbols. Red for C4, yellow for anti-tank mine, white for claymore. And make it so that you couldn't be punished if a team mate walked into a claymore that had been there for more than ten seconds (so he couldn't argue that someone put it there to attack him).