Decouple Assisting from repairing

[AF]

What happens if a repair beam weapon aimed at a unit is intercepted by another unit that cannot be repaired by that beam?

[Google_Frog]

To make repair you would need:
[*]An instant-hit weapon type that only collides with its target.

That is why I suggested this weapon type. This weapon type would be useful to have regardless of whether it is used for repair. Perhaps it could be implemented as a weapon tag (collideTargetOnly) to make the behaviour more general. For instant hit you would use a beamLaser.

Interception behaviour can make sense though. The intercepted unit would be repaired instead of the target.