Advancing through "tech levels" (via reactors for the UNSC or temples for the Covenant) unlocks more powerful units and abilities.
If you encounter bugs or problematic players, 343 Industries uses the site as the primary intake. 1. Submitting a Bug Report To report a technical issue: Sign in at the top-right of the Halo Support site. Halo Wars Definitive Edition
Before reporting an issue, check the Xbox Status page to see if there are widespread server problems. Advancing through "tech levels" (via reactors for the