Depends on what missile you are making. On most the text would be so small, it would be hard to see. American ordnance and some from other countries have a colored band around the missile, in the case of an AIM-9 Sidewinder, it is just aft of the influence fuze and the fins. The color would be blue for training or brown for a live warhead. The very tip of an AIM-9 is dark green glass for the IR seeker. The influence fuze is also a detail you can include, its located just aft of the seeker head and guidance unit.
Denny