[PC Gamer]

You'll need to provide more information on what you are trying to accomplish.

When do you want to check for the Market Garden? When it is equipped? When it is the active weapon? When it does damage? When somebody dies?

If the player has a Market Garden, then what?

The code you provided only detects when a player actively using the Market Garden does damage while rocket jumping OR when the player does critical damage with the Market Garden.