how can i make people unable to move during game coutdown

im trying to figure out how do i make someone not able to move while the game start countdown is going on.

Hello, Welcome to the Forums.

The Mutator Volume device has a setting for ‘Movement Multiplier’ that can be set to 0.

Another method using Verse - you are able to put Characters into Stasis.

Let us know what direction you choose and if you run into any difficulties.