[It helps, as much as it can while they can't stop the situation entirely, and Keith eventually looks back up at him looking more certain again.]
There are things I've done. That -- we've all had to do, for more important reasons. [He has to accept that, he thinks, unable to quite leave it. Whether it is his fault, he--] I know not every enemy is a sentry and not every mission goes the way it should. And sometimes there's only one option to make it out alive. One option to finish the mission so that we can all one day not have to fight anymore.
Whatever point this magic crap is trying to make about both our lives by doing all this... They can shove it.