I wonder if it would be possible to have it selectable. You could choose between 0s and 1-2s fuse.
(Similar system as single fire/full auto with LMG's)
You cant make it selectable in the way you described
You would add another bomb launcher
Change the coding for the new bomb launchers projectile,so the bomb detonates at the desired time
Give the new bomb launcher an IIN,thats doesnt clash with another weapon
Maglink both bomb launchers,so you still have the same total amount of bombs available
Make a new weapon select icon,showing the time delay for the new bomb
Giving you the choice of default bomb,or timed/fused bomb
There are some minor issues though
http://youtu.be/Nbqgu79c9DcNOTE...Detenation delay set high for demonstrational purposes in the video