This is a excellent guide, I'd also like to add
Round 11 - Black Magnum (headshot a nexemis twice and they die)
Round 13 - M32 (great for mobs)
Round 15 - Golden Punisher (double barrel shotty)
Round 17 - NAPALM!!! (Nothing except for hacks give you a better combo kill but recharge takes too long)
Round 20 - Minigun (Get the real Mini gun just like spy hunt)
Get The Fuck Out.
[img]https://i281.photobucke*****m/albums/kk231/drsynyster/gtfo.png[/img]