Rapid Strikes with Extra Attack

[Onkl]

I gm the game where this has come up, my answer was a straight:"No!"

The game is high powered and cinematic in nature (we are now playing our 40th session, the characters are now close to 500 cp) and doesn't have a cap on how many rapid strikes you can make in one attack. So the player just upped the characters skill and with gunslinger/weapon master the can unleash a lot of fury.

The intention of my question was meant to be thought-experiment, it might also be appropriate for my WH40k game.

Cheers