i need help Masive amount of it

okay so my clan cod4 servers are being attacked through recon

we have an addon so we can kick in game and when theses people join the whole of recon goes down and they are spaming aimbot and no reciol and a website, i cant post the site but pm me and i will send u it,

i need help to find out if there is a weekness in this becuse they even got in to our war server with out the password and we couldnt get them out...

got any ideas i would be more then greatfull ") please help "(:(:(

change the email/password being used for it...?

u know ill record it next time i see it, its like notiing iv seen before like addon shuts down and we cant do anyting , aslo some weird aimbit was in earlyer made me lol alot he could shot anywere and get headshots like was shoting at the sky and all u see is headshot headshot ... its epic

/moved to help