During the Battle of Scarif, Jyn and Cassian are in the data vaults and dozens of Stormtroopers are killed trying to make their way in to stop them. Then Director Krennic decides to personally go down there to stop them. I can't understand why he did this personally given that:
- He seems to be in charge in the war room and thus by leaving is neglecting important duties as a leader
- He is not nearly as well armed, armored, or trained as the dozens of Stormtroopers who just died trying to get in
So why did he personally go down to the data vaults?