Based on surprise, speed and shock action.
Predominantly GEV borne assets (including Hovertruck ferried infantry where GEV-PC capabilities were reduced) with heavier units brought in subsequent to securing the beacheads.
Blocking forces positioned to the east (PanE Naval forces in North Sea) and west (Cyber units) to prevent flanking attacks.
Systematic destruction of all surveillance assets
SLBM deep strike from North Sea (subsequent loss of surprise)
General failure of HUMINT sources, many of which were compromised and used for misdirection and deception