good to hear you're liking the game (unlike some ...XD).
A sort-of-protip; to get even better and even more satisfied on Crysis, I suggest using the not so.....'easy' weaponry (putting it politely
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) like the FY71, or the SCAR. For example, Sniper with reflex sights. Running around with a Silenced Hammer. Taking out noobs with the grendel (single shot) is also worthy of a Pro medal XD
You need practice to get a good aim, can't just spray with the DSG (well, because you can't, the fire rate is as slow as!). As such, when you get back onto the spamshot weapons (because you're fed up of using crap guns), I bet you my bottom dolar your accuracy will improve even more.