The dynasty have the MLRS. The best artillery I have seen in a while: they passively charge missiles over time, and then shoot them all at once. Kinda like archers in Warriors Kings who shoots arrows and slowly recover them.
Sadly, my MLRS later die to a mistake: the deployed little MCV you see is actually a salvage/repair deployable building, and I set it to salvage mode, thinking it would get money from nearby destroyed vehicles.
It didn't. Instead, it damages all vehicles in range.