Has anyone made a halo 3/reach mine?

Where you slowly walk up then it activates? If no one has then how would I go about making it?

Device machine with an opening effect of an explosion.

I think there's a better way to do it with just the collision tag instead.

adding an explosion effect when shield is depleted.

Sigh. I made it, i haven't released it because one tenth of the time it disappears when it hits the ground. But basically you go into the collision geometry and find where it says health depleted effect. you then put an explosion effect there and give it a bit of vitality. Now the only way to get it to explode is to go into the biped of the player and create an effect and damage effect that is on their feet that only hurts the material of the mine. Tuh duh.