Unsappable buildings

[EmNudge]

func_clip_vphysics should be blocking projectiles like the sandman baseball etc. if that's what you mean.
You could also set up a trigger_multiple to kill the projectile as it comes near the dispenser.

yeah, it blocked them, but I again phrased my question wrongly. Sorry about that.
What wanted to do was block rockets and sticky blast damage. Perhaps a func_nogrenades would fix that issue.

 

[EmNudge]

func_clip_vphysics should be blocking projectiles like the sandman baseball etc. if that's what you mean.
You could also set up a trigger_multiple to kill the projectile as it comes near the dispenser.

a func_nogrenades will block a rocket, but not its splash damage. If I could just get the invincible checkbox this would all be done and good. Anyway I can manually add it?

 

[Frosty Scales]

a func_nogrenades will block a rocket, but not its splash damage. If I could just get the invincible checkbox this would all be done and good. Anyway I can manually add it?

iirc that was removed completely, thank valve for that one. Here's what you could do:

• Put a trigger_multiple over the dispenser, with some extra space.
  
• Check the flag that says Everything (not including physics debris)
  
• Add this output:
  
• Add a filter_activator_class entity to the map, and give it a name.
• Set Filter Classname to tf_projectile_*
• Now set the filter on your trigger_multiple.

This should kill any explosive projectile (or otherwise) that enters the trigger. If you use this you can probably remove the func_clip_vphysics that you added earlier.