Head shoots to the head why can Spartans still run

Hi halo forms I don’t understand why sometimes I will shoot players with my hand gun in the head and they still can sprint sometimes it fills like I can’t run when Spartans do it to me. I need help plz let me know how it works thank you.

If a player has already reached the maximum movement delta, which is indicated by the brackets appearing within the visor’s HUD, they cannot be shot out of the sprint mechanic.

I believe they can however be slowed down a little if they get hit (probably head-on) by bullets that possess some knock-back.

If a player has not already reached the maximum movement delta, meaning the brackets haven’t appeared within the visor’s HUD, they can be shot out of the sprint mechanic and sometimes it seems like it’ll prevent players from quickly re-initiating it too.