Those of us who use standard mags can't get away with two mags for a game.
Seriously. My vest holds 6 mags, so with standards that gives me 180 BBs ready to go at any time, plus a couple hundred in speed loaders. More than enough for a round. But if I only carried two, I'd really be hoping that I didn't see any fire that round. I can't imagine holding a point with minimal cover and only 60 rounds...
Actually, I bought my vest from you at JT S. It's one of the Infinity Tacticals. It may not be "high end," but it's sturdy, looks like Blackhawk, and it definitely gets the job done.
I also like that you can attach that backpack thing in case I ever play one of those extended round/waypoint games that require much more BBs/water/batteries/etc.
EDIT: Turns out I'm not quite a mathmetician. 30 * 6 = 180, not 1800. And that, ladies and gentlemen, is why the earlier Mars Rover didn't land on Mars.