Trigger test1 Multiple doors

so this is my first Trigger test to see if I can move multiple doors from one trigger , its works quite well , just need to sort some sound out for the doors themselves.
If I can suss out how to do this , then all I have to do is make one good looking corridor and move the doors which ever way I want. the next step in this is to animate a blood texture to start seaping down the doors or the walls , should look quite effective if I can pull it off.