wip Artillery sling load goes wild upon hook up

[Migparts]

I try to hook up nicely gently only using Bob but as soon as the hook gets attached the artillery jumps about violently sometimes striking the helicopter too. 
 

1. Should the hook up be done without Bob?

2. should there be no onboard cargo in the aircraft?

3. should there be a certain percentage of fuel in the aircraft’s tanks?

4. how is the red guidance box and dot turned on and off?

Edited August 22, 2024 by Migparts
Poor grammar

[Marsvinet]

The L118 gun is bugged as a sling load, has been since it was added. Nothing wrong with the Chinook in this case.