Only played for a couple of minutes, but I noticed a couple of things -
1: The game still has that wonky two-screen thing where the mouse is not locked to the game if you have two monitors. So if you leave your second monitor on and play the game on one monitor, your mouse will float back to your desktop if you scroll out of the game field. Awesome work.
2: Grouping together engineers no longer lets you build items that they can all build. Looks like you have to select one engineer, start the construction, then select all the other nearby engineers to assist him. Kind of stupid.