M41

M41 could be of the following:


 * M41 Extended Light Anti-Aircraft Gun - The chaingun mounted on the rear of an UNSC Booster Frame.
 * M41 Light Anti-Aircraft Gun - The chaingun mounted on the M12 Warthog LRV.
 * M41 SSR MAV/AW - The Rocket Launcher featured in Halo 3, Halo 3: ODST and Halo: Reach.