schwarz, Blackwater as you probably know is a merc outfit.
The founder- and many of their key people are SEALS, Rangers, and Force Recon/STA.
They like you (if you want to get contracted by them) if you have SRT/CQB training, a clean background, and are at least an NCO.
If you want to go to THEM, i.e., you want to rotate your team out to North Carolina, their facilities are second to none, and many of their instructors have been in the spit, hence bring real world "under-fire" experience. From where you are, its a long bus ride, but well worth it.
If I am going to get trained by someone on tactics, I'd prefer it to be someone who has actually heard snapping 5.56 or 7.62 whizzing by their heads.
A number of their guys have gone down in Iraq, thus they are bringing back current experience as well.