I usually learn the maps and only use the minimap for chasing orange dots in the end. It's removal, even with bigger and more complex maps isn't going to be that devastating but not knowing where my teammates are could be an issue and is the most overwhelming complaint from people that have experienced the game hands-on. IW are talking about implementing a outline overlay through walls but that would make the interface horrible to look at especially in 10v10+ matches. I think they would just be best putting the standard UAV in the game - developers never seem to realise that in games like this, 95%+ are casual players and largely running solo without (serious) communication. After the SATCOM controversy in Ghosts, I'd rather they just kept it standard like the rest of the game rather than experimenting with something significant like this especially on a far more complicated backdrop.