My personal top 10 FPS that I have played. I haven't played every First Person Shooter out there so I can't speak for ones that I haven't played. Hope you enjoy.
Battlefield Bad Company 2- When I first played this game I borrowed it off a friend thinking "It'll give me something to do" and boy did it. It was my first experience outside of Call of Duty for first person shooters and it was amazing, I was hooked instantly. The all round mayhem that ensues and the parachute drop ins were great fun especially if you managed to snipe one, which I had the luxury of doing twice. The maps were amazing and unique, overall it was a terrific experience. And the story wasn't half bad though I can't remember it well.
Call of Duty 5 World at War- This for me was the best title in the Call of Duty franchise. At the time I was a little young to play and have an interest in COD 4 Modern Warfare so this was my first real experience when it came to it. I was definitely spoilt, I couldn't stop playing the Multiplayer or Zombies. I remember going round Castle, Airfield, Courtyard and Cliffside with an MP40 and just gunning people down, such fun. Zombies was the most iconic mode ever created in a COD game and was serious fun especially when finding glitches and exploiting them.
Planetside 2- The massive battles and maps were great especially when each team had to fight over a small checkpoint. What makes this game special is the battles, the teams are so large that it's almost like an actual battlefield. At some points you don't even know where the bullets are flying from. Furthermore the maps are huge and each faction is unique. To top it off it's free to play.
Call of Duty 4 Modern Warefare- Call of Duty has always been a bit hit and miss, luckily modern Warefare wasn't one of the miss. It set the president for three other titles rocking the same name and had an incredible story that really got you behind the characters. All COD titles before hand had been about WW1 or WW2 which mean't this was a stab at something new. When I played it I new then and there that it would be a huge success not only because of the story but also the multiplayer. For me COD 4 was the title that placed the franchise in the history books due to it's multiplayer that stole peoples lives. Before Modern Warefare it was I'm going out with friends and after it was I'm going to play on my Xbox/PS3.
Metro Last Light- For some reason this game scarred the bejesus out of me. Whenever I got jumped at out of the blue by a creature I would jump out of my seat. Nearly every part of the game had my heart pounding and my hands sweating, the reason for that is it's just such a good game. The worst times were when you had to go outside especially if you were running low on supplies. I will admit I had a few moments when all I had was a knife and a few sticks of dynamite. The story was excellent even though I hadn't played Metro 2033, I felt it really took you in and made you feel for the characters, making what comes later an incredibly hard decision. The blend of post apocalyptic and alien colonisation is a unique premise made even better by the mutated animals and different factions of people in the Metro.
Battlefield 4- I was never a big fan of Battlefield in general other than Bad Company 2. The reason for this was my love for Call of Duty. This feeling waned as the quality of COD deteriorated, so I picked up Battlefield 4 and found that it was a welcome change. The story and multiplayer were both excellent. The multiplayer was especially addictive and reminded me of Bad Company 2 though I was terrible at pretty much everything. Still it was good due to the mass battles that can take place and it's fairly tactical making the experience completely unique.
Crysis 2- I bought Crysis when I first bought my computer expecting it to be good which it ended up being. Most of the time games don't live up to the hype whereas this did making it a rare find. The story was excellent, the action was excellent and the twists and turns in the story line definitely made it an unforgettable experience. Once again the combination of aliens invading, secret organisations and government agencies makes the story ever more interesting. I will include that there was a multiplayer which I didn't play.
Titanfall- I thought Titanfall looked fun and unique in the sense that it's futuristic but never got round to buying it until it was on sale. All I can say is what a blunder, Titanfall was better than I could of hoped. Once I had bought it I couldn't stop playing, it's just what the first person shooter genera was looking for. What made it particularly good was the introduction of the Titans which are manned robots that you can customise and kit out to your liking. The perks in the game were fresh and original as were the weapons and AI enemies that ended up directing games by their movements. Most of the maps were well thought out and made for good wall running and double jumping.
Farcry 3- Like most games I own I bought it when it came on sale. I'd tried Farcry 2 and hated it, just couldn't get into it so didn't expect to like and enjoy it. In the end though it was great especially the survival elements such as hunting and foraging. What was really good was that the items you get from hunting actaully amount to something like making new gear. The gun battles were also really cool and very fast paced making for heart pounding and difficult scenarios.
Metro 2033- What can I say that I already haven't when I talked about Metro Last Light. Unfortunately I ended up ruining the game as I already new what would happen never the less I still enjoyed it a lot. 2033 definitely felt darker and grittier which in a way was good as it managed to keep me entertained. The action sequences were epic and it still scared me especially when your in the library, incredibly heart pounding. It was also enjoyable to find out more about the characters and universe which was a plus. And to top it all off the Redux edition has amazing graphics and really increases the overall eerie atmosphere.