M14 with 4 mags, m9sd with 3 mags, 5 bandages, 1 food, 1 drink, 1 morph, 1 painkiller in inventory - DMR in bag with 2 more morph, 1 epi, 1 bloodbag, 1 antibiotic, 2 painkiller, and one or two food / drinks. Red missions I might carry a few more mags.
I agree with all of Del's details about the M14 / DMR, plus once you figure out the mil - dots on the dmr you're set. M14 is fast for a semi-auto (there are faster), and if you've rushed the last few AI on red with me you'll know what I mean - bang bang bang, pause bang bang bang etc