Improvement: Stop tnt from launching through portals
Tnt can sometimes be launched through portals and explode on the other side without destorying the enemies portal. Fix: Edit in barriers behind the portal, these would catch the tnt and so ensure that they destory the doomed portal without giving that team a undeserved second chance. Evidence of this happening here (supposedly twice in this match) https://youtu.be/UCc3kN1rpO0 Reasoing: shouldnt take too long with world edit and saves players a world of agony due to RNG, shouldn't effect normal games too much, but will be kind to top level players that often stick around in the mw community.
Possible side effects: Teamgriefers may be able to stand on top of this invisible barrier, however shouldn't be able to spawn anything or do anything with it.