In the grander campaign of the Damocles Crusade, millions of Astra Militarum and Adeptus Astartes were discovered. You included, regardless of what you were.
The battle is over for you, though. Hit in the chest with a pulse beam. Not even Astartes power armor could stop it, let alone flak armor should one even be equipped with it.
The T'au definitely took this world. Laying in the mud, clutching your wound and waiting to die, you see Air Caste vessels in the sky, flying over and surveying the field where you and so many other humans had fallen in battle.
A few minutes later, a larger vessel passes by, stopping nearby your location and dropping a squad of Fire Warriors. Perhaps your time really has come...
You hear some shouting in the T'au lexicon. You don't understand a single word. But when they approach, you don't get a plasma beam to the head. Instead, who's likely the squad leader speaks to you as you lay.
"Listen and listen close, gue'sa."
The T'au's low Gothic was acceptable in understandability.
"Do not resist, and you will be assisted. A medical squad will be here shortly, T'au'va willing. Resist, and this field shall be your grave."
You aren't given a prompt to answer back...