I was in the sandbox with 2 guard units but

. Also, not having access being at makeshift places =/= high ops tempo but as we say, "Any place. Any time. Anywhere".
Yeah, not having weights on a 'deployment' is rough but that's when you have to get creative. Concrete weights, buckets of cement, cinder blocks, water-filled weights you bring with you...
I can tell your unit isn't as creative as some folks I've ran across.
I just peeped the program and it looked vary mid, I can potentially see why your numbers may not be higher. I wouldn't have a buddy of mine run it but to each his own.