After the introduction of 64bit, 2 famous MP missions do not work any more:
crCTI PROMAN 2.04
The function that is managing the respawn for AI squad leader (which must seek for the next respawn location) is obviously broken, it was working fine before.
If the respawn to group members is permitted, the respawn works fine as long as there are group/squad member alive.
Problem occurs only if slot is managed by AI, for human players everything is fine.