Certain weapon are one-shot items. Onced fired, the launcher is thrown away.
- Select the weapon.
- Prepare it to fire (pull out aiming devices, remove safety) using the R key. *
- Fire the weapon.
- Select any other
Ongoing development 
ACE 1.13 RC5 [2011-12-09. Hotfix: 2012-04-27]
Stable
ACE 1.13 for OA [2011-12-23]
ACE 1.3 for A2 [2010-07-05] (Deprecated)
Dev blogs
Wheeled by Wagn v. 1.8.1