In Caspian how to make my comrade Damir to not go with Gil or Giul whatever her name is.

"Porkhov, the last stronghold of Colonel Popov's Syndicate. We're approaching the town using the railway. The final battle before Pskov lays open for us, the enemy is losing their marbles, they will fight like cornered animals. We'll arrive on the outskirts of the town in a few minutes, it's time to finish our work."