Pros
- Influential to my later love of FPS games.
- Iconic music.
- Enemy animations and sounds made for some humorous moments.
- Gunplay sounds and feels great.
- Variety in level locales kept the single player experience engaging.
- Objectives based on difficulty adds replay value.

Cons
- Yes.. it's an eye sore to look at.
- Enemy respawns on the higher difficulties was more a needless frustration than satisfying challenge.