Elite mode
Clear the Solo mode once.
Extra item/equipment
Complete the following objectives to unlock the extra stuff:
Electric Lock Pick - Primary objectives in JBA HQ 1.
EMP Device (enhanced) - Primary objectives in JBA HQ 1.
EMP Grenade - Secondary objectives in Iceland Assignment.
EMP Grenade (attachment) - Secondary objectives in 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 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 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 Ellsworth Assignment.
Wall Mine (Flash) - Secondary objectives in Okhotsk Assignment.
Wall Mine (Stun) - Secondary objectives in the Ellsworth Assignment.