After the Autumn's command crew crash landed on Installation 04 on Kilo Tango Victor 17, she continually pestered Captain Keyes and the rest of the bridge crew by suggesting they give up, surrender to the Covenant and be taken as prisoners. At this, Crewman Singh threatened to kill her, while Captain Keyes was worried that her talk would stir up similar thoughts in Corporal Wilkins and his Marine fire team. After much of her bickering, Keyes finally submitted and, taking Dowski's words "seriously", he had her tied up so that she could surrender and be taken prisoner once the Covenant found her.
Later, she was captured by a squad of Sangheili and Unggoy, and while giving her captors information, she betrayed her comrades by identifying her CO, so that she could prove she was right and be taken prisoner along with the others. The Sangheili proceeded to systematically execute everyone in the group, except Captain Keyes. Dowski became shocked at this and was about to protest when the Sangheili shot her in the forehead with an M6D.
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