Dunno if someones mentioned this somewhere else before but i think it deserves a mention of its own.
How could Gree possibly be stupid enough to make the individual reward for top 37.5k +20% building output. Its probably one of the best rewards in the whole event and yet gree decides that only a small percentage of people who put in a minimal amount of effort deserve to get it! I've already way over shot that tier, helping my faction wins our wars, now I have no chance of getting the reward I actually want. May as well not use gold to win if we're gonna be punished for actually playing the event.
Suggestion to Gree:
Simpliest solution, let us pick any one tier reward we want so long as its equal to or below the actual tier we're in. This way players are free to use gold to get as high as they can and help their faction whilst getting the reward they want.
or
Make "tiers" for building output too. For example start with +5% building output, then after a round of inf, grnd, air and sea att bonuses have +10% building output. Then all the four def bonuses and then +15% building output, so on and so on.
Personally I'm hoping for the first solution, its too hard aiming for a specific tier, especially the narrow higher ones. And please bring back Full Assault that one was so much better