http://www.cqb-team.com/tactical.html
again - I am not saying this is by any means great stuff , but it gets the general idea.
So- this or other material like it - is recommended viewing /reading before cracking on with the next one imho.
Failure to cooperate and maximize unit effectiveness will lead to fatalities and defeat in an area where there is no possibility of escape and survival can only be assured by victory.
A bloodui mess is of corse good fun too.