Although CTR:NF technically has microtransactions, for the time being they are as unobtrusive as possible. A large part of the playerbase isn't even aware of their existence. The game has stayed virtually unchanged since their implementation and they aren't advertised in any way, in fact they're hidden so far back that I didn't realize they had been added in until I actively went looking for them. There's always the fear of Activision forcing them onto the players more aggressively over time, but the MTX in CTR:NF are, for the time being, implemented as well as they possibly can be; not requiring anything from players but giving the catch-up opportunity for those with more money than time. Did I mention all the purchaseable items are purely cosmetic?