well, it wouldnt be halo without them... image - X3 Covenant Conflict mod for X³: Terran Conflict

At long last a halo mod X3 terran conflict! With all ships and features from the famous halo series. Play as the heroic UNSC or join the holy ranks of the covenant, both parties will have full story lines including many sectors and planet visited in the series, all the famous ships you have always wanted to captain and the deadly weapons they hold. Disclaimer: X3 Covenant Conflict was created under Microsoft’s “Game Content Usage Rules” using assets from halo, © Microsoft Corporation.