It's tricky to balance, but I've found that if they're very far back, they're not on-hand when you do encounter armor. Of course you don't want them in the very front line, but bringing them up from a trailing stance may take too long, or circumstances may make it impossible. In general, I keep them trailing a bit behind the platoon HQ, and that often ends up being one "cover tile" behind the HQ, but that varies of course. Then you have to hope it's "not too close" to get shot for no reason, but not too far to react when you encounter armor. Sorry to be so vague, but it sounds like you've got the right idea anyway.
[ November 14, 2007, 06:50 AM: Message edited by: Parker ]