>>310080817
Nah you just need to remember the major contact points of common maps. Each avenue will have a meeting point which you've got to memorize the angles of where two teams leaving spawn at the same time will always meet at. Then take a look at all the hiding spots and approaches for the two plant points and how long it takes to get from one to the other and you've got 90% of the map knowledge you need to be "map aware." Everyone runs at the same speed so this knowledge will give you a good minimum time for contact on every route and an idea of where to hide or check when you're moving around the objectives. The last 10% are those nooks and crannies between major locations where you can hide and catch people who are rotating or flanking. In general though just knowing the places where you can comfortably shoot the enemy while they can't shoot you and how to get there without being noticed will give you a huge advantage.
After that the only thing to do to improve is stop missing.