You are playing
RED and your HQ is at Braxx.
Try to make the commands to:

Purchase a Transport (TRANS) to Braxx.
Purchase five Infantry Divisions (INF) to Braxx.
For the first command, drag a TRANS from the item panel to Braxx,
then click the button with the gold star.
For the second command, drag an INF from the item panel to Braxx,
then hold the SHIFT key and click the INF four more times,
then click the button with the gold star.
When you're satisfied with your commands,
press the green "Ready!" checkmark.