Halo 2 Parallels:
-Reused faction (Cabal)
-City attacked
-Earth attacked
-New enemies for reused faction (Cabal War Doggos)
-Rallying (Zavala)
Halo Wars 2 Parallels:
-Tech of faction has Red and grey with Orange lights (Cabal ships)
-Rallying (Cayde-6)
-Sequel to an above average but not quite 9/10 game