Mines no longer invincible.

code/game/machinery/computer/depot.dm

@@ -169,9 +169,9 @@
 	if(depotarea.used_self_destruct)
 		playsound(user, sound_no, 50, 0)
 		return
-	playsound(user, sound_click, 20, 1)
 	if(depotarea)
 		depotarea.activate_self_destruct("Fusion reactor containment field disengaged. All hands, evacuate. All hands, evacuate!", TRUE, user)
+		playsound(user, sound_click, 20, 1)
 
 
 // Shield computer, used to manipulate base shield, and armory shield

code/game/objects/effects/mines.dm

@@ -34,6 +34,11 @@
 	triggered = 1
 	qdel(src)
 
+/obj/effect/mine/ex_act(severity)
+	// Necessary because, as effects, they have infinite health, and wouldn't be destroyed otherwise.
+	// Also, they're pressure-sensitive mines, it makes sense that an explosion (wave of pressure) triggers/destroys them.
+	qdel(src)
+
 /obj/effect/mine/explosive
 	name = "explosive mine"
 	var/range_devastation = 0