look all the mlo hoods you downloaded right put those folders one by one inside your mods folder this is the path: mods/update/x64/dlcpacks inside the dlcpacks is where you drop the mlo hoods folders once you do that.
step 2: is open your openiv in go to this path: mods/update/update.rpf/common/data once u open the data folder scroll down too dlclist.xml first click on it so it can be highlighted blue than click the right side on your mouse button so that menu can come up in click on edit than a big blue box will pop up with all the dlc's in it scroll down to the last >item< line copy the last >item< line than hit enter on your keyboard once the yellow highlighter line go your last >item< line go to the top of the page where it says paste click on paste it will make the copy as your last >item< line go to it in erase the middle name that in that >item< line in go back to you dlcpacks where i told inside the gta5 in copy the name of your mlo hood name in go place in the >item < line in your openiv in make you click save at the bottom.
once you download it i think it goes inside your scripts folder. once inside game i think f5 is to toggle the mp maps banner it will show at the top left of your screen in game. you can also turn on mp maps through by pressing f3 then scroll down til' teleporting once u click on that its going to take u to another page where it will also have teleporting 1 and teleporting 2 press teleporting 1 that will take u to another page u will see mp maps but it disabled so u have click on it to enable than it load the mlo hoods in the game.