Combat Commander: Battle Pack #2 Stalingrad - Rules of Play says:

Combat Commander: Battle Pack #2 – Stalingrad is the second themed collection of scenarios for use with the Combat Commander: Europe series of games. The theme of this second Battle Pack shifts to the East Front in late 1942 as German and Soviet forces clash in and around the vaunted city of Stalingrad. CC–Stalingrad features eleven new scenarios printed on cardstock -- one of which is a new style of multi-scenario Campaign Game -- as well as eight new maps and dozens of new counters. Numerous additional rules relevant to the dense urban fighting characteristic of the struggle for Stalingrad are also included: