Player versus Player (PvP): Yes
Graphic: High
Player base: High
Type: MMOFPS
Combat Arms
Combat Arms is the first free to play online FPS title from Nexon, offering players intense multiplayer combat with matches including up to 16 players. Experience the thrill of modern combat with a huge arsenal of available weapons, dozens of character customization options, and a large selection of maps and game modes.
Combat Arms Review
One of the most innovative aspects to Combat Arms is the highly in-depth character customization system. Unlike other MMOFPS games that offer players various classes or role types, Combat Arms takes this to the next level, offering advanced customization features that you would usually expect to see in a free online multiplayer RPG game. As well as equipping your soldier with the latest weaponry, there’s also a huge amount of visual customization options that make your character unique. You can equip different types of camouflage, unlock helmets and vests and even add cosmetic items such as bandanas and sunglasses. New items are added on a regular basis, providing players with one of the best customization features seen in an online FPS game.
Looking good in combat is great, killing things is even better. Combat Arms has over 100 unique, realistic weapons for players to choose from, offering one of the biggest arsenals available in this genre. Players can take a huge variety of weapons and equipment onto the battlefield including everything from SMGs and shotguns to grenades, mines and rocket launchers. Further options are added in the form of weapon modification, a highly appealing feature that allows players to edit various aspects of their weapons such as silencers, scopes and extra ammo. The huge amount of available weapons, combined with the intricate modification system, provides players with thousands of possible load-out combinations.
You don’t have to enter the battle alone, instead you can join any of the hundreds of available clans. Joining a clan allows you to participate in regular clan battles through the games highly attuned clan matchmaking system.

I assume you haven’t tried playing this game and just looked at the game menu considering there is no mention of the game being full of hackers to the point that the player count is all hackers.
Not to mention Combat Arms is notorious for being the most expensive free to play game out there. Nice try
I play every game I write a summary for
I played 4-5 matches and although there was some suspicious shots, I finished with a positive K/D ratio each match so it’s not all bad. And if you think this is the most expensive F2P title, check out WoT