It was a critical moment, you are a mercenary and your order was to assassinate Simmons. U were on the train, next to Leon, a man u had met years ago by coincidence, both rarely made exchanges, u helped him and he helped u, and there was also Helena, teaming up with Leon. Simmons was mutated and between the 3 of you were attacking, until it was visible that the train you were on would crash. The only way to get out unharmed was to jump into the lake next to you, but u didn’t wanted to let him go