need ye some good ol' boots
I'd say a belt and dump pouch to hold/dump mags more than you need a BDU
I hate hi-caps cause they rattle so much and the mag tickling is irritating. I prefer mid caps since you get neither of those issues, just toss in a new mag and you good to go. I think the Scar L comes with a hi-cap does it not? I'd get about 3 extra mags if you're doing field though it is late in the season...