From NS2 community wiki
- Buy Menu
- Rebuild Power Node
- Marines can repair destroyed Power Nodes with the Use key.
- Lock Door
- Marine players can press Use on a door console to lock a door temporarily to prepare for welding.
- Growth Spurt
- Hold the Use key as Gorge while aiming at a growing structure to accelerate construction. All Kharaa structures except the Hive can be sped up during construction.
- Enter Hive
- Any Kharaa lifeform can press Use on an unoccupied Hive to become Alien Commander.