Silenced SMG

The Silenced SMG was introduced in Halo 3: ODST. But it has been made in Halo Custom Edition.

Differences
In ODST, the Silenced SMG has a red dot sight. That is not present in the Custom Edition.

Trivia

 * The Silenced SMG is a hidden weapon in Halo 2 PC.
 * This weapon is also wieldable in Halo 2 Anniversary Edition.