You may have reached the level cap and unlocked everything. So whats next, just killing? Well i like to make the game harder for myself, so i use the fy-js with the iron sights. Anybody else like to handicap themselves in a unique way? I did think, just use the knife but thats just silly.
Yeah - reaching the level cap has caused me to stop playing the game as much. it would be very easy to increase that cap, so I am not sure why that wasnt added as part of 4XP weekend.