Additional Full Perk Resets can be purchased for 2 credits each seems too cheap, let say you have have a perk build the prioritize Economy, then a Global war start, you spend 50 million (2 perks to get full reset of perks, and then put them all in Offensive, Defensive, and after the war you reset and put them back into the Econ as the bonus from econ during peace and the extra damage/defense in war more than makes it worth it at higher tiers so that would likely become the meta if the cost is kept at 2 credits, maybe the reset cost could be dependent on city or number of perks unlocked so it makes it more of a choice between having better combat vs better non combat bonus instead of getting the best of both at the cost of only having to reset perks twice.