[hyden]

Generally, one would start with an offense and work from there. This seems more like you want to get someone banned and are trying to figure out how...which seems odd.

There is a difference between VAC bans and server side bans with the latter being more of an admin's judgement call. VAC bans are generally tied directly to account misuse and/or using various means of augmenting play (ie, aimbots, etc).

I am sure there is an article/FAQ for VAC bans on the steam forums. Cant hotlink you there as I am at work and cant access it.