支線劇情類成就
本節為支線劇情類成就指南，包含18個成就。這些成就所要求完成的內容會在遊戲中以支線任務的形式給出。
Lesser Evil
Deal with Mr. Carella's indiscretion.
解決Mr. Carella's輕率行為所導致的麻煩
Motherly Ties
Put a grieving mother's doubts to rest.
完成Megan母親的請求
Sentimental Value
You kept Megan's bracelet for yourself. Apparently, letting go really is the hardest part.
在交任務時，選擇留下Megan的手環.
Cloak & Daggers
Deal with the man in the shadows.
完成位於Grand River Road的Jenny Alexander所給出的任務
The Take
Greedy bast ard. You accepted O'Malley's blood money and let him go.
在任務的最後，選擇收下O'Malley的錢並且放他走。【在任務最後與男目標對話時，不要選擇開打的選項】
Smash the State
Help Officer Nicholas take out the trash.
幫助警官Nicholas解決城市裡的麻煩.
Lucky Guess
Maybe next time, Jacob will use a more complex code when arming a bomb.
解除Jacob在地下通道里安放的炸彈.
Acquaintances Forgotten
Follow Pritchard's lead to uncover the truth.
Kevorkian Complex
You granted a dying man his final request.
完成一位將死之人的請求。
Bar Tab
Help the Hive Bartender settle a tab.
幫助酒吧酒保收回債務
Guardian Angel
You paid poor Jaya's debt in full. How very... humane... of you.
替Jaya's付清她的債務
Rotten Business
Help a lady in the oldest of professions clean house.
幫助一位女士救出被綁架的同伴
The Fall
You sent Diamond Chan on the trip of a lifetime.
在殺死Chan的時候將現場偽裝成意外【用麻醉槍麻醉目標，之後從陽台扔下去，偽造成失足意外】
Shanghai Justice
It may take some sleuthing, but justice must be served.
幫助Malik探尋她好友死亡的真相。
Super Sleuth
You really nailed your case against Lee Hong.
你成功利用言語促使Lee供認了罪行
首先在公寓收集四件證物後，對話時選擇Falsive-Drunk-Clock-Pregnant-Belltower
Corporate Warfare
Protect a client's interests by performing a less-than-hostile takeover.
Ladies Man
You convinced Mengyao to spill the beans on the mysterious Hyron Project.【本成就要求口才升級】
在交任務的時候，選擇問磁盤裡是什麼-「Inquire-激活激素（增加對話選項）-Charm
Descend into the bowels of an urban jungle and confront a warrior-priest.
第二次到達橫沙後，主線任務的附加選項是到LIMB和 Dr. Wing談話，觸發任務
目標人物藏在Corporate Warface所需要清理的恐怖分子附近的地下，在交談時不要選擇Fight，同時在最後向Dr.Wing交任務時，選擇Lie
