You can see the game population on steamcharts.
There is more players on saturdays and sundays.
~4100 players in game on average on saturday 15 July , which is ~1000 more players than usual for a saturday on the last 3 months.
Timmik don't need a buff , timmik is better than m4 in close range due to his better ROF , but a little bit more difficult at long range due to his higher spread.
Currently , M4 and Timik have good damage , good accuracy , low recoil , low spread, low ROF making these weapons effective in every situation and easy to use.
You can even face a Crotzni in close range , if you are both aiming the head , the Crotzni will without a doubt miss at least one shot due to the high spread before killing you , making the matchup equal , or in favour of M4/Timik.
Btw Automatic assault rifles shouldn't have more dps than burst rifles , M4 recoil is so low you can only HS if you are accurate ( that's why lot of High lvl players play it ) while you frequently miss one shot in a burst because you or your ennemy is constantly moving / or due to the high spread of burst rifles.