Players used to use the demolition tactic to steal oil and now with the free retrain it's easy to lose a lot of oil overnight because players simply send in bombers to hit your oil refinery and get a free retrain. It's frustrating and I would personally like to see the damage bombers deal against resource buildings dropped inline with what they deal against town centres.
Before anyone says it, not everyone wants to be in higher leagues.
Before anyone says it, not everyone wants to be in higher leagues.