He will guard for the money and for the kingdom, not to help the citizens, and he likes killing so he'll do it.

Sounds like a top bloke to me!

Likes killing is also somewhat of a problem, since a guard of Valton won't be getting much to kill. Just trying to be clear of what to expect. Helping citizens is a guards job, specifically to protect them and the town. That's a guards main job.
We'll continue the discussion in OOC thread 8.