don't feel bad. i once thought there was something different between: No DQ, No Holds Barred, Hardcore, Street Fight, Extreme Rules, and Falls Count Anywhere.
all the afore mentioned are the SAME thing. you CAN DO WHATEVER you want. there is no getting counted out, no getting DQ'd, and you can win by pinfall or submission. the only difference is the name. i have no idea why they have that many different names for the same kind of match.