It's been a while since my last review so I thought why not try to do one now? 

This has always been one of my favorite games to play because of the sort of realism this game had to it unlike other PlayStation 1 games at the time. 

Graphics: 7 The graphics are actually pretty good for a PlayStation 1-era game. The environments seem like they were real places that were ripped out, compressed a lot, then put into the game. The characters also have detail to them and it is not hard to tell who is on your team and who is the enemy. 

Sound: 8 The sounds effects are, well, just that. Sounds. Which are made up of gunshots, explosions, etc. The overall environmental sounds however are a different story. They are crucial to the mission and if you hear footsteps coming form down the hall that you're in, it means there will be trouble. It puts that feeling of suspense and realism into the player that makes them more careful when they do the mission to not mess up and have to restart. 

Addictiveness: 8 It is a fun game to play, though some later games in the series are more fun and have more things to do. It still is an impressive attempt of a realistic hostage crisis situation, which will be more explained in the next point.

Story: 7 The year is 1999, terrorism rates have risen and an anti-terrorist team known as Rainbow has formed. They go all around the world, freeing hostages, taking out bad people, etc. This is truly an impressive plot for a PlayStation 1 game that had never really been attempted before (except in the PoliceQuest SWAT series, but they were not first person until SWAT 3, which came out the same year as Rainbow Six!). The amount of depth the story goes into will be in my next point...

Depth: 8 This game has a lot of stages and a lot of plot points to memorize in between stages. The stages themselves often have more than one mission to do (capturing multiple hostages, disarming bombs, etc.) that will keep you alert at all times so that you don't let your guard down just because you think you completed a mission, even though there still could be hostages out there. 

Difficulty: 9 This game seems to be quite hard even on the medium difficulty and requires intense concentration to fully complete a stage, even losing 1 of your men could ruin how you play the game because everyone on your team has their own unique set of skills that could be crucial to how a mission is solved. Your gun has only a limited amount of ammo and that is all the ammo that you have so it has to be used carefully. You can get an ammo upgrade but it takes up a whole inventory slot that you can put grenades in or a smoke bomb. Also there is no auto-healing or health packs to pick up. TL;DR its hard and that's that.

OVERALL: 9.1 I think it is a great game that anyone should check out for a price of under $10. I personally had fun with this one and you might even have a greater time then I did. Though, The Nintendo 64 version is about the same, the PC version I recommend even more however. 

I think I played a demo of this game when I was younger and even that was awesome. Great review. I would like you used more air between the paragraphs to make it much nicer to read and looks more professional. Other then that great review!