Researching WW2 relatives is a lot harder than WW1 research, ironically even harder if they survived. Medal cards are easy enough to view from the NA for a few pounds, and worth getting a copy emailed. The only way of getting the records for sure, unless you are very lucky, is to locate the regimental museum in the county that the regiment was associated with. ie Oxon Bucks regt I would have to go to Aylesbury archives. Another idea is to do an ebay search and try to find the war diaries, very detailed, listing virtually every man and the days actions. Failing ebay try www.abebooks.com , war diaries is the way to go if you know the regt. Any more help let me know.