Ammo is usually sufficient, provided you aren't wasteful. Health pickups are strategically placed near major combat arenas to reward aggressive play.
Anticipate ambush-heavy encounters. The designer likely uses "monster closets"—walls that open behind the player after they pick up a key or item. rbl7.zip
The map leans heavily into the "abandoned facility" trope. Expect plenty of metallic textures, flickering lights, and computer panels. Ammo is usually sufficient, provided you aren't wasteful
Research Lab (rbl7.zip) appears to be a standalone map or part of a small level pack designed for classic 2.5D shooters. As a single-map release, it focuses on tight corridors and industrial aesthetics, typical of the "base" or "tech" theme. Design & Atmosphere Ammo is usually sufficient
The following is a draft review based on the likely characteristics of such a file: