What is the best shooting game

first person shooter game i like call of duty it has many versions 1234 and 5
5 is more modern but i like 4 marines and 19 century fights and there is Battlefield
its a great game you have battlefield 2142 its the most amazing one!
its in year 2142 you can check it out at youtube just type battlefield 2142 it has single player and multilayer its fun i hope you rate 5 stars!!!!!!