>>387410032
Enemies have a pretty crazy FOV by default so it's really hard to sneak up on them
As
>>387416515
says, just use guns. 2.0 was rebalanced because too many players were just stabbing things either with knives or the SKS bayonet (an S tier weapon in v1.0) so ammunition is dirt cheap and knives break like they're made of cardboard. Keep one just in case but you're probably better off having a second pistol in the backpack for emergencies.