Just as the Typhon passed the orbit of Calypso's outer moon Eris, the looming war machine accelerated despite the increasing long range barrage of the pursuing battle group. The new trajectory means that it will hit Calypso near Hadesheim.
RDI predicts massive destruction: given the mass of the War Titan, the impact crater will probably be on the order of two kilometers in diameter, there will be an area of total devastation several times bigger, and secondary effects of the impact will probably cause a small ice age. "If you're not off the planet until then, you're toast" as the RDI spokesman put it.
And chances are that a lot of people will be toast. In order to maximize casualties, Scylla-like robot units are threatening the routes to the evacuation hangars, wreaking havoc on colonists trying to get off the planet in time.