Fortresses are kind of lame because attackers dont have proper artillery and close air support options along with long range super heavies that can actually shoot atop the fortress walls. As a result we see the lame bypass points, holes in the walls, that are already breached.

I'd like to see proper artillery and close air support options for attackers as well as all the "rat holes" where infantry can bypass the wall being sealed off. Those rat holes should require 15 melta charges minimum to breach before attackers can "bypass" the outer walls.

As far as a conquest mode we really need a new match mode where we're not either attacking or defending. In Conquest you're doing both.