I made a huge mistake and had the cardiod of the Sony C 48 studio Mics faceing the wrong way. The resulting sound is awful and for some reason, i didn't notice a difference until i played it on my own monitor speakers. Now it sounds like there is alot of reverb and the EQ is weird. The reverb isn't that much of a problem but if i can fix it it would be good. We cant re-record so we have to make do. Any tips to fix it (or should i say improve it)
Nope. But I can only assume that you were not listening on headphones during the shoot.
As simple as that sounds, that was your biggest mistake and you will join the thousands of folks in the "never do THAT again" club. The headphones I spec for location work are the Sony MDR-7506. Don't ask, just buy a pair now for the next shoot.
You said you didn't notice the difference until you played the sound on your monitor speakers. Did the audio sound correct earlier? If so, you may have some anomaly in your edit/monitor system. Go back to the camera. Play back the files. Listen on the above mentioned headphones. If the audio is OK there, you may be OK. Find out what you did wrong during or after transfer.