i will point out one thing, you need to be way more aggressive in that last video.
from about 9.40 to about 12.00 you are huddled in that room with thumbs up bums.
flash, frag and push in to each room. use multiple squads/kim's to take the building, or you will spend all night in a pointless fire fight down a corridor.
Stirling services ran some of the best airsoft weekends at senybridge training village in wales. i am proud to say that former sas john mac nearly got me killed on one of those weekends.