Do the breakable wooden crates contain supplies?

Question

Just getting started with Black Mesa. Before I go smashing all wooden crates I see with the crowbar, I would like to know: Do the wooden crates contain supplies?

Answer 1

James Kane, one of the developers of Black Mesa Source has been quoted saying the following;

We already have a crate which is unique to all others which gives supplies, but are very limited in locations. However, standard crates in all the variants may contain goodies, junk, or air. It is our decision to keep it as such for rewarding players who like to explore, examine, and break random crap.

A special undisclosed crate will give supplies but standard crates may contain either goodies, junk, or air (type regardless)

^{Black Mesa: Source Props & Textures}