I've been seeing a lot of negative comments relating to C4 despawning upon death after GU4. There's really nothing we can do except be quick and cautious when trying to C4 vehicles. I know most of the anti-personal mines have had their blast radius reduced, but they still remain upon a players death. I'm completely fine with mines remaining after death and C4 disappearing, but I do have one stipulation I would like to see concerning this. I feel that you should be required to remain the class that placed the mines in order for them not to despawn. There are countless times where I get killed by a Bouncing Betty only to find out the player is in a MAX suit. I think that stipulation would be a fair trade off to the C4 disappearing upon death.
