Forge: Disarm option?

With assault out of the gametypes available, I have been trying to create a one-bomb gametype for a map I’m creating using grifball. It works fine, but im just wondering is there any way to add a disarm feature?

As of right now, i have the bomb set to explode after 15 secs after its been planted, but the opposing team has no way of disarming it. the bomb just sits there.