[Idea] Change citadel gold upgrades to multipliers
In DG irc I brought up the fact that locking gold flags for 45 seconds wasn't very useful and didn't have any strategical impact and there was an idea to change the citadel gold upgrades to multipliers instead of +2, +4 and +6 gold per second upgrades.
Not sure what is fair but just to give a better idea; gold upgrade 1 = x1.5 extra gold income from each gold mine.
So capturing a 3rd or 4th gold mine would be more rewarding.
Discuss.