Out of Ammo Achievement List

This is my Rifle This is my Rifle
10 kills while possessing a rifleman
Dead Eye Dead Eye
10 kills while possessing a sniper
Back-blast Clear Back-blast Clear
10 kills while possessing a rocket unit
Suppressing Fire Suppressing Fire
10 kills while using a machine gun emplacement
Last Resort Last Resort
2 kills while possessing a medic or engineer
Florence Nightingale Florence Nightingale
Assist 20 enemy casualties
Good Effect Good Effect
10 kills with one artillery barrage
Gun Run Gun Run
Supress or kill 7 units with the strafing run
Pen Pal Pen Pal
Kill an enemy unit at over 150m
Splash Damage Splash Damage
Kill 5 units with a single rocket
Second Lieutenant Second Lieutenant
Survive for 5 minutes in a single round
First Lieutenant First Lieutenant
Survive for 10 minutes in a single round
Captain Captain
Survive for 15 minutes in a single round
Major Major
Survive for 20 minutes in a single round
Lieutenant Colonel Lieutenant Colonel
Survive for 25 minutes in a single round
Colonel Colonel
Survive for 30 minutes in a single round
Hidden Achievement
Target Aquired Target Aquired
Hidden achievement descriptions are missing by default. Why is it missing?