At this point it's hard to call this Call of Duty: Black Ops DLC "First Strike" with a straight face (since it first struck on Xbox a month ago, and then on PS3 on March 3), but ironic name or not, it's finally coming to PC on March 25, according to a tweeted announcement by Treyarch's Josh Olin.

As Olin mentions in the tweet, you can pre-purchase the DLC right now through Steam. Though you don't strictly need to secure your copy of a digital-only product ahead of time, since there's no concern about scarcity, you do save $1.50 by doing so.