All discussion about a war script aside for a sec...

Keep in mind that you can only kick a certain number of bots or people before you, yourself, get killed for flooding the server. Since bot attacks are unwelcome on just about every network maybe this is something you should discuss with an oper. Unless you are able to provide this bot of yours with an o:line (provides immunity against being flooded off) then it simply will not go the distance against a big attack, regardless of whether you use mIRC, an eggdrop or whatever.