Suppressor

The Suppressor is an attachment in BlastGen. It is only used in the Campaign, and it was scrapped from Multiplayer.

Campaign
The main use of suppressors in the campaign is to maintain stealth and to not alert any enemies. The attachment is mainly seen on the M4A1 in its SOPMOD variant, which is Michael Hicks's starting weapons in almost all missions. However, the suppressor is only used in the mission Infiltration. It is also used briefly during the mission Final Fight in the first breaching and second breaching sequences until a certain is point is reached, in which Thomas and the rest of the team will detach their suppressors, and then order the player to do the same.

If the player picks up any unsuppressed weapons during stealth sequences, Baker and Thomas will warn the player of the action as using unsuppressed weapons will cause them to blow their cover. However, if the player has all unsuppressed weapons after the second breach, Smith will comment "Looks like he's already to go loud, sir."

Multiplayer
Suppressors were cut from Multiplayer for unknown reasons. However, the unlock challenge still remains: kill 100 enemies while ADS with the ACOG Sight. This suggests that the Suppressor was meant to be the seventh attachment in the game. It can be obtained in Multiplayer via console commands where it serves the same use as in the Campaign, muffling the weapon's sound and as an added perk, preventing the player from appearing on the radar from firing their weapon. It can be attached to all weapons except for launchers.

Trivia

 * The player can also detach their suppressor using the same button in the mission Infiltration. However, if the player does this, Baker will say "Silencer on Hicks, we're not finished here." or "Are you trying to blow our cover Hicks?".