I feel so sorry for Assault , i loved that server 
Me too. I'm sure it'll make a reappearance soon once all the current servers are active.
How about not making an assault server, but put assault maps on classic server? We well know classic server contains all the classic maps and I think a variety will help the server in all kind of ways. I already suggested to put smaller maps like fy_pool_day, fy_iceworld, awp_india, just for admin to put them on when there are less players etc.
One example is Strawhat server, it's a public server and they have all kind of maps and I remember seeing it full all the time, although haven't played much in there myself.