[@Dog] That'd mostly be a talent I think. Being able to shoot bullets good, I mean. If you want techniques there's a couple avenues for it. You could do some kind of close range CQC technique like a grapple or something along those lines if they've been trained in it. You can also think about it as in like anything you use that'll let you do a certain thing in a certain amount of time that's identifiable as an isolated 'thing' that impacts on other people. Like say, a combat roll or like a sharpshooting stance to get more accuracy.

There's also definitely some gun techniques out there like the Mozambique Drill (two to the body, one to the head). You should look into it.

Also touche on the busy-ness part. I have been fairly busy myself, although to be fair I could have done a lot more by now, it's a big mix of fatigue and being busy that's keeping me from doing much...