Matches at Camp Perry (the Vintage, Springfield, Garand and Roosevelt) are all shot at 200 yards.  The number boards are below the target and about 15 feet forward.  When you're at your firing point, it appears directly under, but when looking from a angle... say a few points in either direction, they appear offset.  The boards are either white with black numbers, or black with white numbers... which makes it a little easier to remain on target. 

My first year (2012), I had no idea what I was doing.  Madsenshooter said "Come shoot with me" and I did.  I shot the Vintage match with my Krag (there was no Roosevelt back then)... and had no equipment - just my Krag, ammo and a very cheap spotting scope... not even a sling or mat!  Then, he suggested the Garand match too, so I borrowed my dad's Garand and showed up the next day.  Bob was squadded with someone else, so I squadded with a guy who clearly didn't care to help me.  He didn't tell me where my shots were hitting, just kept my score and didn't say a word.  He didn't even let me use his mat, so I just layed on the wet grass and dirt.  I barely broke 120, LOL.  I also fell in LOVE with it!!!  I purchased a scope, a mat, eventually a coat, the whole shebang... and I've shot every year since.  I now shoot all four matches and have several rifles to shoot too.  My son started shooting with me 4 years ago, and he's been bit by the Camp Perry bug too!

Trust me - you'll do great and love it too!  You don't have to worry about scoring a medal (some do... some obsess about it), just shoot and have fun.  Medals will come eventually (or at least, that's what I keep telling myself, LOL).  :D