My thought was to tie XP into these competing wishes in the following fashion. Each 'Mech has some sort of battle value based on the tech of the components. Experience for landing damage on enemy 'mechs gets a slight bonus or deduction based on the difference in those BVs.
For example, pilot Old School drives a base Catapult with regular engine, no ER weapons, single heat sinks, etc. It has a BV of say 300 (just a number for math sake, not a real suggestion). In a drop he lays into a Model K catapult that has double heat sinks and ER PPCs. (BV 350 or so). As the enemy Mech is more advanced, pilot Old School gets a bonus to his damage based XP. Now in that Model K, pilot Maximus I.S., also scored damage on the older model Catapult, Maximus I.S. scores a little less XP for the same amount of damage because of his higher tech BV level.
If a Clan Omni is ever available for IS pilots, then it will be an XP beacon everyone wants to nail. You go for the higher tech, you lose a little xp compared to those facing the greater challange. This might help keep older tech in play longer as those interested in pilot development will run "old school" for the XP bonus and keep the electronic battlefields of MWO from becoming all endo-steel, double heat sink and ER weapons evry battle. If clan weapons are visiable (maybe different laser colors) then having clan ER weapons will make you a more juisy target in exchange for your in game advantage over regular weapons. Clanners will have a reason to fight trials amongst themselves (for full xp rather than "reduced" beating up on IS players). IS players will have more of a reason to face better Clan equipment in drops as they expect to get more XP from defending a Clan fight that taking on a standard house drop.
Just my thoughts....
Edited by SuomiWarder, 12 May 2012 - 08:28 PM.