A mod where soldiers fight wizards and rogues

To start off, the basic plot of the mod is that a modern army is about to occupy or is already occupying, a village or ruins in a remote location, where the village or the ruins are located in an environment where modern amenities are inexistent, while the dwellers of this place have access to arcane arts and sorceries to aid them in the assymetrical warfare against the invaders

If the occupation is in a village, civilians are put in a curfew and can't leave their own homes . In either the village or the ruins, there will be a few prisioners and researchers, who are investigating the ruins, taking notes and collecting samples . During the match, "before the storm", they'll come and go on their own, and each has to be escorted by one or two soldiers all the time

The resistance fighters can be given one of the several objectives, in order to win the game:

1)Rescue a civilian or prisioner, and take them to an extraction zone deeply hidden within the map . The win condition for the occupying army here is to take this civilian or prisioner to their own extraction zone, somewhere else

2)Fetch a precious treasure somewhere on the map, that may or may not be within the possession of the invading army, and take them to an extraction zone somewhere else . Likewise, The win condition for the occupying army here is to take this treasure and take it to their own extraction zone, somewhere else

3)Kill one of the researchers . If the occupying forces discover that this is their objective, then their win condition is to save the researcher, and extract him to somewhere else

4)Destroy one or two particularly large and sturdy structures with explosives carefully placed, as well as destroying the notes that researchers made about it . The win condition for the occupying army is to either prevent the explosion from taking place or to fetch a stash of notes and records, previously unknown, about such structure, and extract the files to somewhere else(same as 2), except here, you are retrieving data instead of objects

5)Perform some complicated ritual, usually involving channeling, that if successful, can summon powerful demons, controllable by the player, to drive the invaders away . The win condition here, for the resistance, is to amass a certain numbers of kills within a time limit, while the win condition for the invaders is to withstand the attack until the timer runs out

Meanwhile, the invading army has to take note of all of these objectives, but they'll not know what is their own "win condition" right away, until certain conditions are met

About the classes, there isn't much to say here about the invading faction here, which for all intents and purposes, is the Standard Arma 3 soldier, with a few tweaks and changes

Meanwhile, the resistance fighters will have initially access to classes based on the rogue or mage classes, deeply specialized in one or two roles, but because of their diminished numbers, they will get overwhelmed on a direct combat . The demons, when summoned, are designed to be one of the several "warrior" classes, that are designed to be specialized in dealing with either armored units or with several soldiers at once

Also, if the objective is to rescue a civilian or prisioner, one of the players of the resistance faction can directly control this civilian or prisioner, which will blend with the others NPC civilians, he can comunicate telepathically with his/her rescuers . In some modes, this civilian or prisioner can be a mage, but he won't have access to many spells

I'm not sure if a mod of this scale could ever be done within Arma 3, but neverthless, it's still worth trying