As Xeptic said, the medals for D-Day defender are up and working again! THANKS XEPTIC.
__TIPS FOR D-DAY DEFENDER___
In order to pratically get ALL the medals, follow these simple rules.
-instead of aiming at a specific soldier, aim at a -------......___ angle in a group of soldiers. This way you will kill them a lot faster and less will make it far enough to start shooting you.
-Shoot the tanks, cars, grenade soldiers, AND ALWAYS THE PLANE first because all of these explode, killing everyone around them. Then get the rest of the men left.
-After around 3 days, planes will start coming. Listen for them and shoot at the air when you hear them! Once your hit with one of these bad boys you lose 1/2 of your health! So keep a HEAR out for them.
-In order to watch all of the cutscemes and endure my awful voice acting, go to the nearest grocery or hardware store and buy a set of ear plugs for a dollar. Come back to your game and insert them into your ears. Watch the cutscenes, WARNING: WHEN WATCHING THE CUTSCENES PLEASE DO NOT ACTUALLY WATCH THEM! WATCHING THE CUTSCENES MAY CAUSE SERIOUS BRAIN AND EYE DAMAGE! To avoid accidently looking at the cutscenes, grab a bandana from your house and tie on your head over your eyes.
-use mortar strikes when most needed. Save them up for when your about to die. This applies to every other upgrade.
Well, I hope that helps! With these tips in mind you should be able to get all the medals. :)