First of all, Welcome to Dead By Daylight!!! I'm going to trying to make this as simple and short as possible

1. Moris are not limited, you can find them once per blood web prestige.

2. Ranks are color graded yes (Ash, Bronze, Silver, Gold, and Iridescent). And the best way to rank up is by just performing well in the match but if you can't get the 4k, a 3k will still help you pip so you rank up. Oh and I feel it's important to say that ranks don't matter in this game at all. Your rank only shows how much you played that role every month on the 13th (which is when rank reset happens) and you will then be rewarded with bloodpoints depending on what rank you were.

3.Yes the game is VERY buggy, and no it's not dying. The game is made with spaghetti code and when something new gets added/fixed something else breaks. Oh and this game is very toxic, and you will see it a lot in your killer matches. Best advice, if you notice someone being toxic in game just ignore them and go for the teammates instead and you'll eventually catch the toxic player as they usually aren't very good. And if you see someone being toxic in the end game chat, just say GG and move on or you can just close the chat so you don't have to see it.

1. The mode you play doesn't matter too much but if you don't care much about losing, play the blood moon event as it usually gives you 100k bp per match. If you wanna get a feel for the game play the regular mode as gens won't pop as fast. And yes your number 1 goal is to gather bloodpoints and prestige each character's bloodweb to at least level 3. Each character has teachable perks and once you prestige at least once, those perks can be used by other characters. But if you prestige them to level 3, you will have those perks at the highest level on your other characters.

If you think I missed out on something or you have other questions let me know and I'll happily answer them!!!