I have ~2220 AR in FP Soldier on the battle station, the alpha I mainly use(but isn't required against most characters) is Initial Strike, AS/Fling, Conc, Snipe Shot 1, Nano Feast, Fuzz, Lava Cap. I can kill 4-6 players in a row with just those perks while TMS is up. The damage procs, if they fire at the same time, can literally 2 shot a low hp character. I've done it several times to badly geared players and froobs with just as/fling and occasionally I can just straight up 1 shot a froob. It really doesn't require too much when you get ~70% crit with procs and then have dd procs and high AR on top of it... pretty sure agent is just the new level 200 BS king for the time being.
Deaths Gaze is pretty powerful at this level as well since very few players actually have decent NR even with the 120% check.