Video Plugin:
Jabo's Direct3D6 1.5SP1: Recommended plugin (although, continue reading). Supports this game very well. This is the only plugin I've tried where the Lens of Truth works at all in Snowhead, although the Lens of Truth slows my system down considerably in most areas of the game.
Rice Video 5.6.0: There are some issues with clipping. The Lens of Truth acts somewhat odd.
Direct64 0.5 alpha (2004-05-04): Works very well for this game. Turn Oversampling on, or the Bomber's Notebook will not display correctly. The Lens of Truth does not show walls you can walk or shoot through (Snowhead issue), although this may be correctable by playing around with the graphics options, or using the latest version. The
latest version of this plugin breaks Oversampling, and thus the Bomber's Notebook, so I linked to an older version.
P.S. OrkinSampling is Anti-aliasing, so turning it on will improve the picture quality, but at a CPU cost.
Sound Plugin: All the sound plugins I have seem to work for this game. The default plugin (schibo's) is OK for most instances, and has a small CPU footprint. You may need this, as the Video can be intensive in some parts of this game.
RSP Plugin: Not required.