Monkey Business

Player notes

• ◆"Monkey business" basically means deceitful, mischievous conduct or act, which is a reference to IAA's deceitful actions in the game, especially in this mission, and monkeys being used as objects for lab tests.
• ◆This mission is directly connected to the GTA Online Heist finale The Humane Labs Raid. It also explains how Haines finds out, through what he only describes as his "sources", that the facility is making a nerve toxin.
• ◆There was originally a helicopter chase through the city in the beta, similar to The Merryweather Heist (offshore approach).
• ◆Despite Steve Haines saying that this was a six-man job, it was completed with only four (Franklin only handled organizing the getaway).
• ◆The Jetsam Cargobob can be obtained in this mission and stored in the player's Helipad. The Jetsam edition of the Cargobob is rare in story mode, because the chopper is in white and red, while the standard Cargobob only comes in two variants: Camo, and black. It also doesn't have the Sea Stallion (part of what the Cargobob was made from) "buff" in the front. It can be obtained by first dropping the container on the trailer, and NOT landing the Cargobob in the given location. And try to shove the Frogger (or any other helicopters that may be stored there) off the helipad, but be warned it may explode. After the Frogger is off the helipad, land the Jetsam Cargobob, and commit suicide (as Trevor). When the game asks to replay this mission, select no, and then when the player regains control of Trevor, RUN to the Sandy Shores air field (do not drive or take a cab) and the chopper should still be there and can be saved on the helipad, provided the player doesn't change helicopters, or the Jetsam Cargobob will disappear.
• ◆Alternatively, instead of shoving the Frogger off the helipad, the player can land the Jetsam Cargobob near the player's Helipad, and then exit the Cargobob. A warning message will appear telling the player to return to the Cargobob and resume the mission, but ignoring this warning will not cause the mission to fail. The player can walk to the helipad, enter the Frogger (or any other helicopters that may be stored there), and fly and land them away from the helipad, then return back to the Cargobob, and land it safely on the now-empty helipad. After this, the Jetsam Cargobob is stored and the player (as Trevor) can commit suicide. When the game asks to replay this mission, select yes, and the player will respawn to the latest checkpoint (as Trevor again, inside the Jetsam Cargobob carrying the toxin above the Humane Labs), and the mission can be continued and finished as normally thereafter. This alternate method ensures that the player can store the Jetsam Cargobob safely without shoving other helicopters and risk any explosions, while at same time, resume the mission without restarting it.
• ◆In the opening cutscene, Michael will tell Franklin that he has not heard from his family at all. This is not true, as Tracey will have emailed him at least once by this point, and Jimmy may have texted him right around this time telling him he has returned Michael's car. The player may also ring Jimmy and Tracey after Minor Turbulence and they will answer.
• ◆Starting the mission as Trevor will skip this entire conversation.
• ◆The cooling tunnel underwater will have a secondary grate put over it after the mission to prevent the player from entering the facility again.
• ◆This mission has several references to the Metal Gear Solid franchise:
• ◆Michael infiltrates the research facility by entering the exhaust shaft underwater. This is a reference to how Solid Snake entered Shadow Moses island in Metal Gear Solid and how Raiden entered the Big Shell via underwater in Metal Gear Solid 2: Sons of Liberty.
• ◆Michael cuts the grate in order to enter the labs. This is a reference to how Solid Snake cut a hole in the Big Shell's oil fence in Metal Gear Solid 2: Sons of Liberty.
• ◆Michael is using a Stun Gun in this mission for non-lethal methods. MGS franchise features tranquilizer guns used by the player to put enemies to sleep in order to not kill them. Dave Norton also says "Put the humanitarians to sleep Michael", referencing to how the tranquilizer gun from the Metal Gear Solid series puts enemies to sleep.
• ◆This mission requires an access card from a scientist to open a certain door. This is a reference to how Solid Snake and Raiden used access cards in order to open certain doors in Metal Gear Solid and Metal Gear Solid 2: Sons of Liberty.
• ◆When Trevor and Michael talk while flying away after picking up the container, the latter will move his lips while Trevor is talking. Additionally, when Michael tells Trevor that Steve Haines shot himself, his lips don't move.
• ◆After this mission is completed, and Patricia has returned to her home, Trevor's trailer will become dirty again, with trash scattered across the rooms, and cockroaches plaguing it once more.
• ◆Even if the player didn't kill any scientists, the in-game news report will still state that several scientists were killed.
• ◆Trevor receives a phone call from Haines directly before this mission to inform him that it is time to do it. If one switches to Michael directly after this phone call, he will be in Paleto Bay, giving the idol found in Derailed to Lester. If one switches to Franklin directly after the phone call, he will be on his way to the mission location, just down the road from it. Regardless, Michael will always be the first character there.