Ah. Those mods should be able to work together. The bullet weapons won't gib enemies as they have the +NOEXTREMEDEATH flag set to them. They will still be gibbed by other effects such as the Super Rifle, barrel explosions and punched bombs.
I might release an update for Virtua Crisis that reinstates the flag for the Drake Shotgun and the Sidewinder SMG. Thanks for pointing this out!
Enemies will only be sent flying if they are dealt a high enough amount of damage. In vanilla Doom gameplay, this can only be achieved with the Berserk Pack, Rocket Launcher, the BFG9000 or explosive barrels. Or typing MDK into GZDoom's console.
This mod is best combined with mods that allow you to deal high amounts of damage to enemies, such as Broadsword Jim, Obliterator, Trailblazer, Russian Overkill and so on.
I would rather not use Treasure Tech sounds in this mod, as that mod is still technically in-development.
