I'm not one of those people who like to play by the rules. I play the way I want and I usually know how to do so in Singleplayer ArmA 3.
Let's start with DISABLING ACE Advanced Fatigue, if you so wish.
-Find wherever your Overthrow mission PBO is. For me, it was in the !Workshop folder in my ArmA3 directory.
***WARNING! YOU SHOULD NEVER CHANGE ANY FILE OR FOLDER INSIDE THIS DIRECTORY UNLESS YOU ACTUALLY KNOW WHAT YOU'RE DOING!***
-I know what I'm doing, so I do it anyway.
--Open the Overthrow PBO with your favorite PBO browser. I use PBO Manager 1.4 Beta (Armaholic)[www.armaholic.com]
-Find the mission.sqm inside the folders: overthrow_main.pbo/campaign/missions/Overthrow.Tanoa
**COPY THAT FILE! DO NOT EDIT DIRECTLY!***
-Take that file directly to your DOCUMENTS\Arma 3\<username>\missions\<mission_name.Tanoa OR DOCUMENTS\Arma 3 - Other Profiles\<username>\missions\<mission_name>.Tanoa
**NOTE THAT THE ".Tanoa" EXTENSION OF THE FOLDER IS REQUIRED!!!**
--Place the mission.sqm inside <mission_name>.Tanoa
--Open ArmA3, ACE 3 is required as a mod
--Enter the 3Den Editor, choose Tanoa as a map.
--Load the mission name that you gave the folder with the extracted mission.sqm
--FIND the ACE Advanced Fatigue module and open it
--Change ENABLED to DISABLED, OR alter the values below it to change your experience. I chose disabled AND I chose to alter the values just in case.
SAVE THE FILE!!
--Now that you've disabled the Fatigue system, you're going to want to COPY the ORIGINAL overthrow_main.pbo into another modfolder, like this:
ArmA 3\@Overthrow_NoFatigue\addons\overthrow_main.pbo
--Open back up the PBO Manager and chose the NEW Overthrow PBO you just made.
--COPY and PASTE the new mission.sqm to the SAME EXACT place you found it. It will automatically overwrite the old with the new.
--ENABLE this modfolder and play Overthrow!

Next one is pretty darn useful.
--You're going to need the DEV console to be available when you pause the game for this to work, or create a script that runs when you spawn in the Overthrow mission.
After you spawn, pause the game. Enter in the DEV console: player setVariable ["money",10000000,true] for 10 million money.
Unpause, and your money will update after about a quarter of a second.

Don't ask me how I have my DEV console enabled because I don't even remember how.

I also found the script for skipping night time and increasing the timeScale, but I can't find it again so I can't experience night time or slow my game time :(

Hope this was useful for you!