DA = Decision Altitude ie. what you see with QNH set. Airport QNH will give you a 344 ft decision in your example and show 244ft at touchdown.
DH = Decision Height ie. What you see with QFE set. Runway QFE will give you zero feet at touchdown and a 100ft decision.
EFATO. Fly straight ahead, follow the SID or emergency turn. It depends on terrain. You do not follow the MAP unless you are going around. However, at some airfields the MAP is similar to the emergency turn and it usually gives a good heads up for terrain problems.