Did the sources to doomattack ever get released ?
It was by far the most feature packed and fastest doom 68k port. Would be nice to see it going on ppc, then maybe we can up the resolution and still have good speed

Also, 040/25 and bvision got the game to between 12-15 fps running arounf first level. 7-9 on 030/50+aga if i recall right.