Complete the indicated task to unlock the corresponding weapon in Mission mode.

C11: Earn the Combat Knife Specialist 2 career rank.
Calico HE: Earn the Survival Specialist Rating 4 career rank.
Chinese Type 56: Earn the Combat Knife Specialist Rating 3 career rank.
EPDD: Earn the Stealth Combat Specialist Rating 4 career rank.
FAMAS: Complete the Training 2 mission in under 3 minutes.
Flashbang Grenade: Earn the Combat Knife Specialist Rating 1 career rank.
Jackhammer HE: Earn the Tactical Combat Specialist Rating 4 career rank.
Jerico-41: Earn the Tactical Combat Specialist Rating 2 career rank.
M4 Silenced: Earn the Survival Specialist Rating 3 career rank.
M67 Grenade: Earn the Tactical Specialist Rating 3 career rank.
M82 BFG: Earn the Combat Sharp Shooter Rating 4 career rank.
MDS A4 Silenced: Earn the Stealth Combat Specialist Rating 2 career rank.
Over Under: Earn the Combat Sharp Shooter Rating 2 career rank.
Sawed-Off Pistol: Earn the Survival Specialist Rating 1 career rank.
Silenced .44: Earn the Stealth Combat Specialist Rating 3 career rank.
SP - 57: Complete the Training 1 mission in under 1 minute and 30 seconds.
SSP 90: Earn the Combat Sharp Shooter Rating 1 career rank.
TK-9 Silenced: Earn the Stealth Combat Specialist Rating 1 career rank.
UNP .45: Complete the Training 3 mission without missing any shots.
USAS - 12: Earn the Tactical Combat Specialist Rating 1 career rank.