Look Ma two hands, is an achievement/Trophy in Call of Duty: Modern Warfare 2, it requiers you to kill 10 enemies in a row using akimbo weapons in Single Player or Special Ops.
Guide
Akimbo weapons are dual wield weapons. You can use either double G18s, Uzis, TMPs, etc. I got this in Loose Ends with dual TMPs, but you can get this on Bomb Squad in Bravo Spec ops. You start off with dual G18s so just kill ten enemies. You can't aim down with akimbo weapons so that makes it slightly harder than normal weapons. You use RT,LT R1,L1 and to shoot.