Well the idea of the autohosted events sounds good, but maybe you should do it with the races first.
Also, the few events that I have seen were very similar to each other, in which you ended up doing almost the same as in the main gamemode: shooting on foot running from one side to another, so those events had nothing special. I'm not saying that those events shouldn't be made, but it would be good to have also some ones about different things that you don't normally do in the main gamemode, to have more variety. I have seen other servers in which the events are totally different from the main gamemode, and some of them are quite original.