I'll try to add my question here instead of making a new thread.
Can you enter close combat with a man who's infiltrating another group (or the same one the CC men are coming from)?
This just came up in a game I played and I've never encountered it before. My A Group had an infiltrator in my opponents B Group. My opponent used his A group to infiltrate my A group. Then he entered CC with one of his men and he was assigned to my man that was infiltrating.
Yes--the CC attacker from Group A can be assigned to attack a defender that happens to be infiltrating Group B.
It doesn't appear that the rules specifically address this situation.
The rules cover the situation by making no mention of disallowing infiltrators in other groups in the RPC draw in determining the target of the CC attack.