Too bad 223 pistol takes 1 more AP to shoot than other guns...
That's why I stick to 14mm pistol for 2 quick eyes shots with 10 AP. But I must admit that damages aren't that great, though they're pretty consistent on any type of armor. And range sucks - )
SG still has the most diversity, which is really nice.
I never tried XL70E3, to me it stands between assault rifle and P90, is there anything special to it ?
side note : if you're gonna use P90 bursts, don't forget bonus ranged damage.