The upcoming spin-off title Metal Gear Survive has been confirmed to have microtransactions. The game's producer has made some comments on their presents though.
In an interview with Official PlayStation Magazine UK the game's producer, Yuji Korekado that the micotransactions "will not be loot boxes, and there will not be a pay-to-win types of micotransactions. There will be things like the accessories in Metal Gear Online, and Forward Operating Bases in Metal Gear Solid V: The Phantom Pain."
Though the comments from Yuji Korekado are reassuring it is still a shame that the title will include micotransactions of any sorts. Some of the ones in the title also allow players to earn additional rewards, even if they are not ways to pay-to-win.
Metal Gear Survive will be available on 20th February for PlayStation 4, Xbox One and PC.