Successfully complete the indicated special objectives in Solo mode to unlock the corresponding item:

Electric Lock Pick: Primary objectives in JBA HQ 1
EMP Device - Enhanced: Primary objectives in JBA HQ 1
EMP Grenade: Secondary objectives in the Iceland Assignment
EMP Grenade - Attachment: Secondary objectives in the Cozumel Assignment
Explosive Sticky Camera-Attachment: Secondary objectives in the Iceland Assignment
Frag Grenade - Attachment: Primary objectives in JBA HQ 3
Gas Grenade: Primary objectives in JBA HQ 1
Gas Grenade - Attachment: Secondary objectives in the Cozumel Assignment
Hacking Device - Force Hack Upgrade: Primary objectives in JBA HQ 2
Hacking Device - Software Upgrade: Secondary objectives in the Shanghai Assignment
Night Vision - Enhanced: Primary objectives in JBA HQ 3
Shotgun Shell - Attachment: Secondary objectives in the Okhotsk Assignment
Smoke Grenade - Attachment: Secondary objectives in the Shanghai Assignment
Sonic Grenade - Attachment: Primary objectives in JBA HQ 2
Ultrasonic Emitter: Secondary objectives in the Ellsworth Assignment
Wall Mine - Flash: Secondary objectives in the Okhotsk Assignment
Wall Mine - Stun: Secondary objectives in the Ellsworth Assignment