During a discussion with my instructor he mentioned that the only strategy we can use in an ETOPS SEGMENT is the fixed speed strategy as this strategy is what is used to determine the Airline's area of operations and hence the maximum diversion distance. I was under the impression that the fixed speed strategy is only for planning purposes and the Commander is free to adopt any strategy from Standard, Obstacle Clearance and Fixed Speed depending upon the circumstances under which the failure occurs.( terrain, smoke, fire etc). My Instructor mentioned that these strategies are only applicable for an engine failure scenario and not for ETOPS. Could someone please enlighten me ?