I mean, you're pretty much limiting out of all of our choices to help you by closing out the availability to recommend the best F2P titles to you. You listed all of the best ones... Aside from that. America's Army: Proving Grounds is about the closest you're going to get to a great game. The rest of them are indie trash and are really just basically rips of other games with new names and skins thrown over the top of them. If you have played Line of Sight, or Combat Arms, you have played the physics of almost every free to play shooter on the internet.