You're browsing the GameFAQs Message Boards as a guest. Sign Up for free (or Log In if you already have an account) to be able to post messages, change how messages are displayed, and view media in posts.
Now They Fly? (50gs) - Get a kill while airborne in a Warthog. Size Is Everything (20gs) - Kill 20 enemies with a detached Machine Gun Turret. ODST (30gs) - Kill a player while you're airborne from using a Man Cannon. Bigfoot (20gs) - Kill 20 enemies using the Mantis' stomp attack. David and Goliath (40gs) - Board an enemy Mantis. Clay Pigeon (30gs) - Shoot an enemy out of the air while they use the Man Cannon. Special Delivery (30gs) - Kill an enemy with a melee attack when landing from a Man Cannon. Pump Yer Brakes (40gs) - Score the killing blow on a Mantis.