Don't know why the HMG counters have changed, but plloyd and Matt W are correct about the Grenadiers.
From the Daily Content article
The Men Behind the Counters:
Quote:by late 1942 to 1943 the German army had to take stock of their losses and were forced to change the structure of the platoon. Manpower was decreased but compensated by a firepower increase.
The game represents this by the late-war 6-3 GREN counter. This counter sees the firepower of the platoon increase by 1, but the unit is also now more brittle, having a reduced strength of just 2-3 to reflect the lower number of soldiers present. The revised platoon structure also saw the renaming of the infantry soldier into Grenadiers, hence the GREN on the counter.
