Ive had about a week to play the psp version. I cant really tell you accurately which maps are out, but alot seem to be there... I was really looking forward to the psp version, but was really disappointed when I finally got to play...
not the graphics or gameplay. BUT THE CONTROLS....
because the PSP analogue stick only moves in 2D this requires you to use the buttons to achive 3d look and aim... which is absolutely ANNOYING
My recommendation in the PSP version:
Unless you like fiddly controls, do not buy before you try !!
Im happy with the ps2 version, though the space levels are ho-hum IMO.