Want to buy tickets for Redskins Cowboys game. Does it matter what side??

Okay my bf wants to go to the game so am surprising him with tickets! I looked up the field map and it looks like one team is on one side and the other on the other. Okay so i know nothing about football and never been to a game. Sooo i need help. Does it matter if I buy tickets on the visitor side?? Are all the redskins fans in a certain area? It is the game in MD the Fed Ex Field on Nov 16th Redskins vs. Cowboys and he likes the Redskins of course. HELP Please... I fould good priced tickets in the 430 level what you think?