I played Wildlands quite a bit. It has a ton to offer. After beating it on Tier One mode, leveling all the way up to actual Tier 1, I wound up doing a complete video walkthrough on Extreme mode with no HUD or upgrades. Which brings me to one of my slight nit picks about Wildlands. On Tier One mode, the AI are very unrealistically instantaneous and flawless at aiming. Therefore you don't stand a chance unless you fully upgrade all your skills and use your whole squad to sync shots. Even then, if you so much as engage in the various convoy side missions to gather resources for those upgrades, it can become like a marathon chase, as the enemy vehicles are very hard to take down even with vehicle mounted heavy guns on turrets. When I played on Tier One I would only use the Armored SUV to do convoys, nothing else will last very long. I also got in the habit of ramming the target convoy vehicle off the road, then I'd power slide the armored SUV near it whichever direction I needed to in order to use it as a shield from enemy gunners, as I quickly hopped out of it to tag the target vehicle for the rebels. This avoided the marathon chase, and I got pretty good at it. Tier One quickly starts feeling very unrealistic and arcade though.
Another nit pick is the Rebels. I prefer to not ever use them, as they will most assuredly ruin any chance of stealth. I thoroughly enjoyed my Extreme playthrough with no HUD or upgrades though, and it's actually quicker to play that way because there's no need to waste time chasing convoys. Even shot syncing with no upgrades is limited to syncing with only one of your squad, so less time waiting for the other two to get into position.
As MM stated, the WIldlands map is very similar to actual Bolivia, and on the official forums actual location photos taken by the devs were compared to their in-game counterparts, and the realism cannot be mistaken. With no upgrades, I had to find choppers to steal to get to mission objectives that were really far from my starting point, but I found that to be quite fun. I would start and end each video at a safehouse, so I'd often take shortcuts through the rugged terrain with whatever vehicle the safehouse I started at had.
My 3rd slight nit pick about Wildlands, is that a few of the missions are a bit too scripted. One of which seems inevitable the Rebel AI will get there first and kill the target. I happened to find a way to get to the target with stealth, kidnap them, and take them to a safehouse, but there's no option to have your handler interrogate them as the mission is described.
Please know that this is in reality extreme nit picking, and only because it's a game you come to love so much you want to erase some of it's minor flaws and call it perfect.
The reason I avoided Breakpoint is I felt Ubi had bastardized the series by using a fictional location, a Sci Fi story where you fight a lot of mechs, and a tiered loot structure. I was also finding by what I read and videos I saw that the game was seriously flawed compared to Wildlands as MM pointed out.
I only recommend it for if you need help finding better ways to do missions, as it can be a major spoiler otherwise, but my video walkthrough of Wildlands is 114 videos long and contains 3 extra missions not in the base game. I averaged under 10 min per mission though, but that's after putting in tons of hours getting to know the game extremely well.