lol check out that game.. pretty kickass..

 

I used the US Army version a couple times... really interesting stuff to run through. Its called Engagement Skills Traininer (EST) 2000 (http://www.peostri.army.mil/PRODUCTS/EST_2000/). The one I experienced had a HUGE wall, the size of a small movie theater screen, with carbines, light support weapons, and stationary M2s setup to run through different situations. The mechanics of the weapons are all the same. The bolts snap back to simulate felt recoil, jams were simulated on occasion, and the M2s (from my experience) were notorious for sucking... but pretty effective when it worked.

 

What's awesome about it is that it can run the same situation multiple times, all with different caveats. Some are shoot/no-shoot situations, others are fast reaction, etc. There have also been ones where it was simple marksmanship, etc. And while there is nothing like actual training, sometimes a unit or personnel don't have that sort of time to go to the field... so, instead, everyone straps on their battle rattle, and gets to enjoy a nice AC room.