This upgrade requires the second floor to be upgraded fully, and costs an x amount of crowns.
It entails:
1 Spawnpad (moveable)
Healing pads (moveable)
Guildhall customization button that allows toggling of PVP in guildhall. (Similar to opening/closing guildhall)
PvP in guilds? What more can you ask for. Allows for tournaments/private fights without overclocking lockdown with people who just want to experiment.
I think this should be in its own room. Fighting in an area like a guild hall would be difficult (have you seen how many decorations and other movement blocking objects some guild halls have?). And how would it work with rank doors? Those would allow higher rank players to just go in and LOL at the swordsman/bomber trying to hit him as he fires his gun over and over.