It's a good idea yeah, but a lot of players play with their own footsteps disabled anyway. Why not increase the volume/radius of footstep noises by nearby players first, both friendly and enemy, then have it so that different textures give different footstep sounds.
For the default textures, the devs can assign those sounds and with custom textures, you can assign your own and upload it with the rest of your map package (or use one of the sounds that would come with AC).
EDIT: Actually, increasing the footstep volume/radius is going to end up supporting campers, and slow the pace of the game. Ignore that.
For the default textures, the devs can assign those sounds and with custom textures, you can assign your own and upload it with the rest of your map package (or use one of the sounds that would come with AC).
EDIT: Actually, increasing the footstep volume/radius is going to end up supporting campers, and slow the pace of the game. Ignore that.