You are RESERVED.
To answer your questions. It would be a more 'real' version of Minecraft, as the AI of enemies would be smarter. That said, other means of fighting are allowed. Don't grapple with a creeper though, obviously.
Crafting will be used by a crafting table of course! Don't worry about recipes; every player will be given a recipe book (since no one has any memories in-game, this would be easier) however they wouldn't know what to make until the man on the sky-screen tells them.