Never saw TT Combat Pack in person but what I can see from pictures i really looks nice size.
I did than with my Falcon II But it was just too difficult to get to the front pockets.
I actually thought about doing it with Heavy Mesh fabric but I just didn't know how to do it. Maybe I'll do 2nd version in Heavy Mesh
I have too much ideas but not enough time to realize them

probably not only one here I can see