One view expects Guilliman's reinforcements to prevent or decisively alter the siege if they arrive together before the Chaos forces reach the Solar System. The objection is that the warp storm could make forces arrive separately, giving the enemy opportunities to defeat each contingent. The timing and concentration of the arrival matter as much as the total force available. Titan transports provide another operational problem: destroying them in space could prevent their powerful cargo from entering the ground battle. These are arguments within the fictional setting, using its travel constraints.
Notable Point · 4:31:03-4:34:36
Concentrating reinforcements during the Siege of Terra
Guilliman's arrival prompts disagreement about concentrated reinforcement versus piecemeal entry through a warp storm.