I would like to see new achievements to collect on Official servers, it would be cool to see what you guys can come up with.

Here are some ideas

Infected Bounty Hunter - Kill 1,000 infected
Brutal Shot - Kill 20 survivors with headshots
Rise and Shine - Survive the entire night (Can not log out or be killed during the whole night)
In the Dark - Survive the entire night without using a light source or NVGs
In Uniform - Wear the same type of Jacket and Pants
No Witnesses - Kill 20 Infected in a row without alerting another
Stealthy - Stealth kill 5 infected in a row without alerting another
Crazy Person - Get the kuru disease
Sore Feet - Walk/Run 25Kilometers on foot
The Fast Lane - Reach the max speed on a vehicle
Party Time - Dance at a Luna Park
Doctor Tetra - Cure all types of diseases
On a Limb - While on flashing health, kill a survivor
Medic - Wake up 20 survivors from unconsciousness
A True Sniper - Kill a survival with a headshot from more than five hundred meters