I'm getting ready to submit 40 files to the DLDB when it gets back up (All mine. 30 of them are probably melee, but thats besides the point).
I have a map with 3 cannons. You hotkey each cannon, 1, 2 and 3. You then use the cannons to attack passing medics. Once you get a certain number of medic kills, you get a civillian to that gives you special "powers" to help you kill the medics.
So basically, how do I make it so every 10 kills, a civilian spawns?
This may seem like a noob question. Also, I dont want to use Scoreboards.
Thanks in advance.

You can use player score kill, you can use deaths of medics, you can use both in conjunction to one another, or you could use kills to cash perfect (in the wiki).

Find the score of a medic when killed, multiply by 10.

So what would the exact triggers be?

Kill scores are in our wiki:
http://www.staredit.net/wiki/Kill_Scores

Everytime you kill a medic, that value is added to your kill score.

You know, blatantly obvious stuff like this never occurs to me.

Solved.