How many stars this game deserves depends…
If this was part one it could be seen as a solid game worth 4 stars. As five is the highest rating it should be reserved for nearly perfect games and with the gnasher bugs, horrible matchmaking and ranking and all the in game paying plus how few maps there were on release, it does not deserver 5 stars when you are serious.
However if you judge this game while having Gears 3 or even 4 in mind and make your decision based in relation to that and other top games, it should never get 4 or 5 stars as it made so many steps backwards. Technically and how people feel while playing. Then, 3 stars is still an appropriate judgement.
Some people might be so frustrated that they give 1 or 2 stars and why shouldn’t they if they feel like? Some say thats exaggerated and therefore it is ok to delete those rating. I just leave aside that this is worst censorship and a kick in the ■■■■ for the customers - if we aggree that it is ok to delete 1 and 2 stars because they are not realistic MS should be so consequent to also delete all 5 stars rating as they are clearly not based on the pure facts, too. But they don’t do that of course.
So it is just muting negative voices in favour of sales. And to me this is fraud as they pretend to show me what all the buyers of the game think but then remove many opinions to trick me into buying it.
Personally I would give it 4 stars right now as an objective rating, removing one star for how often the feeling is just bad conpared to the old parts and now removing one again for the censorship in the store. This way I would come to a quite fair and well justified two-star-rating.
Which is the reason I dont rate it at all as it would hurt my Gears heart.