when turrets placed...>>>example T99 placed on socket, it should** decrease 2- upkeep**, because its already powered up, but when not socketed , then it should increase 2+ upkeep... make it better, just like Arena Version.
in Arena i always had more upkeep 40% remaining even, when army built, and placed defences on outposts and main base, without ULT samson or ULT fuel i simply had more easy fun in Arena version but this Reboot upkeep system should get better