Snap Map on PC feels very much built 100% for console. ;/ I hope they update to have a separate PC category with more than 4 players and less restrictions, like for one, the controls of snapmap on kb+m...
The 4 player restriction is probably partially influenced by the fact the original Doom was limited to 4 player multiplayer.
But yes, i hope they'll add support for at least 8 players... have ideas for 4v4 maps.
As for the UI, if you can, plug in a controller. Makes making maps so much easier and intuitive. Were i still console player, i'd be impressed. (As PC player, i'm merely annoyed by lack of UI suitable for KB/M.)
How the fuck do you kill those charging demon things you encounter later in the game? They two shot me!
Pinkies? Double jump side ways, use heavy weapons and hope for staggers. Equip runes that make Glory Kills easier to execute or whatever boost staggering enemies.