Lieutenant Nick Flap used to be a Jive-aho code talker during the Immortal War. After Warhead's troops killed not just his platoon, but the women and children too, Flap left the regular infantry to join the elite Agents of SHIED (Shard Hunters In Extra Dimensions) and exact his revenge on Warhead. Here's his team:

From left to right: Pvt. Beat 'Em Bailey, Miss Buxley, Lt. Flap, Lt. Fuzz (whose passion for blood is only matched by his passionate eyebrows), and Sgt. Shortz.
A closer look at Beat 'Em Bailey and the interdimesional backpack:

