How come we dont vote on gametypes now?

I get that we select a playlist, then vote for a map.

But how come we don’t vote for gametypes? Im kinda sick of playing BTB Slayer, I would like to see some BTB Flag

Or Im kinda sick of SWAT Slayer, Id like to see some swat oddball

Or im kinda sick of the infection, Id like to see some aplha zombie, and some varitey in it.

So, how come we dont get to vote for the gametype now?