Alliance chat needs to be moved so that you can monitor chat while still playing this is a serious problem that needs correction before open beta testing begins.
Obviously if you want R4 and R5 units their should be tabs for R4 and R5 in the recruit section as their are for R1, R2 and R3. A person should not have to switch to the forum in order to see what upgrades are necessary.
Sub base expansion should also be explained through game play. Anytime you have to read the forum to learn how to play the game you are disrupting the flow of the game.