There was this C.Q.B SWAT tactics video on Youtube, but unfortunately Youtube took it down.
cqb training (rare) real operations, google this and see if you find any thing.Ohh and there are some really helpful SAS videos still on youtube,
http://www.youtube.com/results?searc...l+secrets&aq=0 There are a few different episodes, some about tactics and some about survival (there really cool).Anyways check it out you'll lean alot.It also talks about shooting positions ect.