When someone is using a launcher, he should be able to crouch or stand up, lean - well everything like when using a rifle (check out the website under additional information for firing positions).
Also after firing a rocket the user is pretty immobilized and cannot get into cover with stance. Proning after firing a shot results in standing up and switching to the rifle - thus being exposed even more.

Suggestions:

• Let us have all movement options for the launchers aswell.
• Proning after the shot should set the player as quick as normal into prone position, but readying the launcher again could take a bit time (maybe 1-2secs).
• No more switching back to the rifle until selected by the player through the action menue.