Nemesis - Gregg Hurwitz

NO GREATER FRIENDEvan Smoak is the guy you want on your side. A former government black ops assassin, he'll be there for you in your darkest hour - and he'll rain hell and thunder on those who caused your pain.NO WORSE ENEMYA lone wolf operator, Evan can't afford to lose any of the few people he likes and trusts. But when Tommy Stojack, Evan's loyal, long-time gunsmith and armourer, betrays him, it's war.Because a good assassin keeps his friends close, but his weapons closer . . .