In the launch version of Supreme Commander 2, you immediately paid for units and structures when queued. With this patch, you pay for units when construction starts. While it may sound like a simple change, it changes the way you play the game and manage your economy. It allows you to pre-plan your bases and unit queues beyond what you can afford with your resources at any given time during a game.
With this change, you need to more carefully manage the build statuses of your Engineers and factories, and be prepared to use manual pausing and unpausing, because the least expensive units or buildings queued always get priority. You'll also want to pay more attention to your incoming Mass and Energy reserves so you don't have builders sitting around waiting for resources.
The patch also adds automatic management of Engineers and Factory queues that are waiting for resources to become available. If you queue beyond what you can currently afford, units will automatically wait and continue production when resources become available.
Build Queue details as follows:
+ We now show the rebuild bonus outline, even if you do not have the resources to build the item. + Added two new keybinds: Ctrl-Shift-P: Pauses all construction units, Ctrl-Shift-U: Unpauses all construction units. + When you pause an engineer or factory they will continue building whatever they are currently building (you already paid for it anyway), but will not start another build task until unpaused. + No more yellow outlines when building. + If they can afford the unit when the command is issued, they will pay for it right away and move to build. + If they cannot afford it when issued they will move to the build site and wait until they can afford it.