Am I fucked? I had it like this: I use Multibit, but my wallet is encrypted with a 16 character passcode, randomly generated. This pass was saved in a text file on my external HDD. I was ratted, and now the file was deleted. As well, I think my HDD was formatted

I don't remember even the first character. Maybe it was a c or f, I don't know

. I'll offer a big bounty, maybe 6 BTC to whoever can help unlock my wallet.
i like this app very much:
https://github.com/gurnec/btcrecoveryou supply it with parts of the password you remember and it tries variants.
i can help you set it up if you need to.
if you search this forum there are also services which are able to do this trustless. they usually ask 10-20% of the wallet amount.
BE SURE TO USE A TRUSTLESS SERVICE never send just your complete wallet.dat with passwor hints!
if you dont remember anything from your password and if its complex you are fucked...