Halo Wars strategy: 10 rules to winning in the gam...
#10: Build Order
Starting out on the right foot is important. If you're playing as the UNSC, immediately build a supply pad, reactor, and barracks. If you're taking control of the Covenant, crank out a warehouse, temple, and hall. Once the reactor or temple is done, upgrade your supply pad or warehouse, and then start building your army.
Halo Wars strategy: 10 rules to winning in the game