All, league bots havediffert tactics, one is purely surviving, you can see tie-fieders, using venom poison, and all kind of stuff, if you look for a killer my multiply works fine too, the shephard bot I would choose is raticus rex, all it does is simply killing other bots and doesn't use any other weapons, it is simply one powerful bot and his destroying power is strong(needs a minimal of ten multiply to kill it). It can operate alone pretty well so could even turn reproduction of it off and let the possibility of shooting depent of the .totalspecies.