Most Memoir '44 rules refer either to unit combat rules (their range and dice rolls) or to the terrain restrictions associated with movement and combat. M44 Brigade has compiled the best player aid I have ever seen, which is better than having a bunch of Terrain, Troops and SWA to refer to.
It’s just 2 pages, fits in an A4 sheet and you should probably print it and laminate it and keep it in your Memoir '44 box!