Durendal, is that the map I sent you?
Just for reference, so you guys know how to make one in the future:
You need a NPC, a trigger_multiple, a target_deactivate, and a target_activate.
Lets say that your npc is a stormtrooper
Enter these values manually through the entity window. (press 'n' to bring it up)
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For the stormtrooper;
NPC_target: activate1
target: deactivate1
targetname: st1
count: -1
For the trigger_multiple (use_button checked);
target: st1
targetname: button1
wait: 5
For the target_activate:
targetname: activate1
target: button1
For the target_deactivate:
targetname: deactivate1
target: button1
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That will work. you can simply use that in your map. If you don't care how it works, stop reading this post. I will go on to what each of the terms mean.
target-what the entity activates when it is used.
targetname-what the entity is called, this name is used in target command.
NPC_target-the same thing as target, except the entity activates it when the entity is killed.
So, in effect, you hit the trigger_multiple (called button1) which spawns its target (the stormtrooper). When the stormtrooper is spawned it activates the target_deactivate, which deactivates the button. When the stormtrooper is killed, it uses the NPC_target to activate the target_activate, which activates the trigger once again.
If you didn't understand that, read it over until you do.