What is the correct spelling for ETACMS ER?

If you have come across the misspelled term "eTACMS ER", here are some possible correct suggestions. Firstly, it could refer to the "M270 Multiple Launch Rocket System Extended Range", abbreviated as M270 eTACMS ER. Another possibility is the "Enhanced Tactical Autonomous Combatant & Munitions System Extended Range" or simply eTACMS ER. Verify the intended context for a precise interpretation.