Not to bum on your math or anything but aren't there 10 troops ?
So your number would actually be 100,000 messages? But yeah thats still a whole lotta bandwidth to deliver those messages.
But my question is, why do you need to broadcast to everyone? Treat them as a Drone or a player, instead of an Object. This would mean though you kill one you get a kill, but make their ENY value .05 (so they get any perkies) The problem is the Kill/Hour and Kill/Death stats that would be effected, would it be possible to eliminate those certain kills from stats?
-BlckMgk