I assume he lives based on the fact that his side is medically advanced and he is wearing a backpack most likely containing a med kit to easily heal his gun wounds. Back when D2 Emily was poisoned she should of been dead but obviously not after ending up at the hospital. Both Emily's ended up in the hospital for the same reason but D2 recovered very quickly from a more severe assassination attempt. All of the combat trained prime characters seem to also be physically and mentally superior like the glasses agent easily winning the fight against Aldrich's man.