The Halo franchise spans years according to its lore. See the Halo games in chronological order in terms of where the events ...

This Banished-made weapon features a slightly faster rate-of-fire than the UNSC’s M41 Rocket ... The Assault game mode, which was first introduced in Halo 2, is now available in Halo Infinite ...

It's not exactly the Fuel Rod Cannon first introduced as a usable weapon in Halo 2, but rather a UNSC SPNKr rocket launcher ... weapons to Halo Infinite. The game's first new weapon, the Bandit ...