PROBELM
/* Zip */
SOLUTION
So this was the simplest of them all I think even though I couldn't get the flag even though I was using the correct command.
So after extracting the zip file we'll get a file named flag.aes128cbc. We can simply use the openssl tool to decrypt it but we'll need a password to do so.
If you check the strings of the zip file you'll find the password
➜ strings flag.zip
flag.aes128cbcUT
{\ux
Salted__
flag.aes128cbcUT
{\ux
SevenPinLock0123456
The password is SevenPinLock0123456.
openssl enc -d -aes-128-cbc -pass pass:SevenPinLock0123456 -in flag.aes128cbc
FLAG: CTF{always_add_comments}