Special weapons:
Unlock the following weapons by performing the corresponding tasks:

WEAPON - HOW TO UNLOCK
Brayko's SMGs - Kill Brayko.
Brayko's Stereo - Spare Brayko.
Gold assault rifle - Sneak up on Al Samad Lieutenant without any alarms being sounded.
Gold SMG - Assassinate Brajka.
Omen's Shotgun - Kill Omen Deng.

Romance bonuses:
Unlock the following bonuses by performing the corresponding tasks:

BONUS - HOW TO UNLOCK
Exclusive Interview (+5 Endurance, +500 XP) - Romance Scarlet.
Ladies Man (+5 AP) - Complete all four romances.
No Time For love (+20 Endurance, 20% Endurance Recharge) - Have no romances.
Office Romance (+5 Endurance, +500 XP) - Romance Mina.
Rome-ance (+5 Endurance, +500 XP) - Romance Madison.
Savage Love (-5% Fury, Roomsweep, Iron Will and hard to kill cooldown) - Get "assaulted" by selecting SIE as handler in final mission and have reputation higher then 7.
Thanks But No Thanks (-5% cooldown on Evasion and Iron Will) - Refuse SIE's advances.