#457 pvp combat and mitigation specifics

• each class in PVP has its own mitigation calculations and this needs a further breakdown which Issue #451 won't cover
• review of pvp behavior with groups, guilds.

moving to ThetaScorpii as PVP combat is not the focus for OmiScorpii, still working to get DoF/AoM feature+systems and also the basic combat systems for the game.