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Chapter 13 - Fallen Soldiers
Determined to locate Sarif's scientists, Jensen tracked down Isaias Sandoval, personal assistant to America's most outspoken augmentation opponent. Sandoval admitted to operating on the scientists in hopes of disabling their implanted tracking devices, but refused to implicated his boss, Bill Taggart. Pritchard then traced one of the scientists' signals back to China, sending Jensen and Malik scrambling to find him. Unfortunately, the conspirators are still one step ahead...

You Scratch My Back, I'll Scratch Yours is a mission in Deus Ex: Human Revolution. It is available within the Explosive Mission Pack or The Director's Cut and is interjected between the completion of the Find Vasili Sevchenko's GPL Device objective and the start of the Stowing Away objective, during Jensen's second visit to Hengsha.

Primary objectives[]

Meet the Harvester contact[]

Rescue Tong's son[]

Meet Tong in the Harvester hideout[]


  • The Harvester contraption, otherwise known as the Unknown Handheld Device, is a portable cloaking unit to aid in Tong Jr.'s escape. Tong Sr. does not disclose this information, however, and the information is only revealed in a cut scene during Tong Jr.'s escape, aside from some possible foreshadowing in an e-mail on one of the computer terminals in the Harvester compound.
  • Tong Jr. is in a locked cell in the hideout. His cell may only be entered once you unlock it via the security terminal in an office nearby. You may reach this office through a breakable wall or an air shaft. If you have the cloaking augmentation you can use the front door as well (the cameras won't detect you).


  • There exists an air shaft allowing the player to observe Tong Jr. from above, before freeing him. After listening to him conversing with himself concerning his present predicament, he will whistle a tune. This tune happens to be the main theme for the first Deus Ex in which Tracer Tong plays a primary role.
  • If you repeatedly leave and re-enter the air shaft, Tong Jr. may do a couple of different things. Besides often botching the last note when whistling the first Deus Ex theme, he'll also complain that the guards keep giving him Lemon-Lime soda instead of Orange (a popular reference to Deus Ex). Related to this, an e-mail can be found in this mission which addresses Tong Jr.'s demands upon his guards for soda.
    • This part of the mission is very clearly a reference to Metal Gear Solid, where the protagonist, Solid Snake, climbs through ventilation to discover an imprisoned soldier named Meryl. If Snake leaves and re-enters the vent, Meryl will be performing a different action than before. Leaving and re-entering the vent, to change what Meryl is doing, can be repeated over and over.
    • Additionally, the Unknown Handheld Device that Tong Jr. uses to escape is very much like the Stealth Camouflage that another character, Otacon, uses to evade enemy detection throughout the game. In both Deus Ex: Human Revolution and Metal Gear Solid, this device was most likely used to explain why there is no need to protect or escort each game's relative character to safety, as both characters are heavily implied to be incapable of efficiently defending themselves.
  • Upon rescuing Tong Jr., Adam will have a somewhat lengthy conversation with Tong Jr. concerning his youthful and foolhardy ways. Adam seems to successfully make his point once he points out, "The more power you think you have, the more quickly it slips through your grasp." This seems to have made an impression as it is one of Tracer Tong's more well known quotes from Deus Ex.
  • Above the last room with guards there are two destroyed levels, seen through a hole in the ceiling. Although they seem to be unreachable even with augmented jump and crate stacking, one may see there a large crate with Sarif Industries logo as well as a plush toy named Chubie overseeing the location. This belonged to one of the game designers and in the commentary it's noted that the level designers left one of these toys in every level of the game before a few were bugged, so as to not appear, by the lead designer.