Significantly revised infantry, especially late grenadiers -> greatly increased HA according to the available weapons (PIAT = 8, Bazooka = 12, Panzerschrek = 15, Panzerfaust = 24); introduced light division type for Axis minors -> less manpower (10 instead of 15) but better mobility (Leg-special movement type and +1 initiative) with possibility to use trucks (general infantry is only foot or train transported).
Also there are some unique units given (non-purchasable) for playing through Wehrmacht campaign: Flieger, Sturm, SdKfz-8/Pak-18.
Several tiny additions: Panzer-I gets armor-piercing switch (special ammo) -> HA = 1 but INIT = 0 comparing with basic HA = 0 / INIT = 3; flame tank's stats corrected + KHT-27 (soviet T-27) and Wasp added to roster.