Stryker is going to need some help with the First Aid test, with a -6 penalty(-2 for being Awakened, -1 for Indoors condition, -2 for Sustaining a spell, and -1 for the 4 Stun damage) he's left with just one die. Brick would be at -3 only, so with his Rating 6 Medkit he has a better chance to heal two boxes of Stun damage, and removing Stryker's wound penalty.