It's broken.
They've taken a game that so many of us want to be fun to play and turned it into something that is frustrating and often unfair.
The whole point of these types of games is that players get a feeling of achievement in getting more gear and progressing though various scenarios. However, once endgame maps are achieved the progression is slowed to snails pace and the penalties for death or failure are so severe as to make the game near impossible and certainly not fun to play.