I just discovered a wealth of useful resources on the Battlefield 1942 Information web pages maintained by Eric Haines.

These pages in particular are extremely informative, and if you play BF1942, you should take a look:

• Frequently Asked Questions
• Annotated Maps - maps marked with vehicles, emplacements, ammo, medical, etc.
• Tips and Tactics
• Weapons Effects and Grid O' Death - paper vs. scissors vs. rock.

There's now a link to Eric's BF1942 pages on on the How To page on this site. There's also a link to a local copy of Eric's pages on the JDRGaming server, because Battlefield 1942 is an 'old' game, and web sites about BF1942 tend to disappear.