2d collision in a 3d game?

I have heard (and found) that blitz's 3d collisions system is rather complicated, innaccurate, and sometimes rather unreliable.

I am working on a simple horizontal shoot 'em up game as my first proper project and need the collisions to be very accurate and definately reliable. I was wondering if I could use the 2d collision commands (RectsOverlap, ImagesOverlap etc. ) for the collision, instead of using the 3d collision stuff. So basically I need a way of calculating the 2d x and y coordinates of the 3d meshes on the screen, and then I can use the 2d commands.

Is this something to do with CameraPick? Or something totally different?

look at the 2D in 3D hud and sprite stuff in code archives to get an idea of how to translate coordinates.

Ok, I will. Thanks.

I use a 2D grid array in my Ancient 3D game and it works very fast .. there's nothing flying around, except rocks, so it works ok.