Lol its best not to try and play exactly like him. Tactics I'd say just serve and volley, sharp angled serves on break points and stuff. Most of the stuff Federer does is just based on instincts, not tactics. Develop your own style and take some tactics that Federer uses and try to incorporate it. But be warned, everyone has a different style and Federer's style may not suit your game. Its best to develop your own tactics because they'll fit you best.
