How to make pve mode more friendly to players

1 Idea

 A training hall with the ability to summon any enemies and in any quantity, as well as the amount of health displayed above them. This hall is needed for players who are going to play at high difficulty levels. This will allow them to test builds and practice parrying, and the ability to parry is 80 percent of success. Darktide has a similar idea. 

2 Idea 

When choosing a random mission, players must be assigned to groups of already playing players, rather than choosing random missions. Because of the current situation, everyone registers 2 missions to quickly find a group. This leads to the fact that most of the time you play the same mission

3 idea

It is necessary to make a choice of preferred classes for selection of players before registering the game. At the moment, it is not uncommon to have a situation when you join a group in which all the classes that you have and are suitable for this level of difficulty are occupied. Of course, you have to leave such a group and start searching again.

Don't repeat the mistakes of Darktide.