There is one
Berg in the database, the problem is that it is there without name, only the surname.
There are two Berg in the russian sites, this is the reason I did not include his portrait, as I do not know who of the two is the one in the game. But their names are
Grigory_Maximobich,
was at Lutzen: automatic translation "In 1813 he took part in many battles. Under Lyutsenom covered retreat allies, and on June 2, 1813 Awarded Sv.Georgiya 3 - go cells." Lyutsenom is Lutzen
Burhard_Maximobich
Was at Bautzen, automatic translation
In overseas hikes was blockaded with Thorne, fought with Bautsene. July 7, 1813 appointed Major-kvartirmeysterom the Polish army, which was in the ranks during the Battle of Leipzig, the siege Magdeburg and Hamburg.
Not Adam Ivanovitch

Are you sure this is the right name?
Petr Petrovich
Konovnitsin is in the database and already did a portrait of him for the game, you should have it
There is a
Lavrov in the database, unfortunately no portrait available
Tscheilikov, perhaps he is Anton Stepanovich Chalikov? Sometimes there are different transliterations to the latin alphabet He was at Leipzig.
[url]http://ru.wikipedia.org/wiki/Чаликов,_Антон_Степанович[/url]
Roth, we already know him
Alexei
Trubetzkoy is Trubetskoy_Vasily_Sergeevich here
[url]http://ru.wikipedia.org/wiki/Трубецкой,_Василий_Сергеевич[/url]
Using a translator, it is said "Having participated in the fighting in in 1813, komanduya cavalry in the stack F. F. Vintsingerode", is there a correlation with the data you have