The game itself is suitable for the most common builds (4 cores (any frequency from 2 GHz), 6 GB of RAM and 1 GB GDDR5 on which the GPU is clocked at 775) and can actually be played on ultra graphics settings. To optimize, you can set the visibility range and vegetation to a minimum (this does not affect the graphics, only fps eats) and the effects to a minimum, so that there are no sudden lags and you can attack faster (the “effects” settings only prolong the effects themselves and yes, it will be more beautiful, but again it eats the required FPS).
But there is a big BUT! There are a lot of cheaters here, so you need to pray not to fall for them and if you do get caught, then be patient, on some maps there are holes in the textures in which you can hide. Here you already need to look at reviews on YouTube.
On my assembly it runs on those settings indicated at the very top.
My PC:
AMD Phenom X4 9450 2.2 GHz
Memory DDR2 7 GB (eats 4 GB during the game)
PSU 500 W
Video card Radeon HD 6850 (810 MHz) 1gb GDDR5
Hard drive 500 GB SATA, speed 7200.