The Stimulus Pack maps are now included in the regular playlists: so if you choose the Demolition playlist there's a pseudo-random chance that you will play a map from the Stimulus Package. To be sure, you can play these maps outside of private matches, but you have to rely on the luck of the draw.

You are correct in thinking there are no longer dedicated Stimulus Package playlists. These have been replaced by playlists for the Resurgence Pack.

The Stimulus Pack maps are now included in the regular playlists: so if you choose the Demolition playlist for example, there's a pseudo-random chance that you will play a map from the Stimulus Package. To be sure, you can play these maps outside of private matches, but you have to rely on the luck of the draw.

You are correct in thinking there are no longer dedicated Stimulus Package playlists. These have been replaced by playlists for the Resurgence Pack.