I suppose a squad system ala BF2 PR would not be so bad.
SL makes a squad, needs 3-4 members to get a SL kit (eliminates ppl just grabbing SL for the ****s and giggles of assume weapon)
VoIP only to Squad. (atlest a own channel)
ppl can spawn on SL.
As much as i love the squad system in Project Reality, i don't think it would work very well in Red Orchestra. Although the VoIP to Squad is a good idea, also instead of having a constant spawn on squad leader, aslong as he's alive obviously. Maybe you could place Rally Points instead where they would spawn either directly on the point or very close by.