UNSC turrets

I’ve been looking at clan maps and other custom game maps using warthogs and scorpians… so why don’t we have turrets that clip on to a specialised 2x2 pannel?

My ideas for turrets are:
>Dual gauss
>Dual machine gun (warthog mg)
>Scorpian turret
>Quad auto cannon (flak stuck looking up minimum angle to ground is 30 degrees above ground angle)
>dual rocket launcher

All of these have lower accuracy then their original origin but have a 360 degree firing arc