You have to shorten the upgrade times - Atomic & Cold War upgrades take forever. The upgrade times are so long that players in my alliance are spending less time playing or have stopped playing altogether. Instead they are playing other games, your competitors. Im speaking about players who practically lived on Dominatiins and spent a lot of money on extras. Unless you fix this, Nexon, you will, continue to lose players and potential revenue. This is an enormous flaw in the game. Excessively long upgrade times is pushing players away into the hands of your comeptition. FIX it!