Hey,
if you want to be historical absolutely correct, then there wouldn´t be any Tigers in CMBN before the release of the commonwealth modul. During the battle of the Normandy, only three German units used the Tiger tank:
= schw. SS-Panzer-Abteilung 101 (later 501), Tiger I - from August on Tiger II, British/Canadian Sector
= schw. SS-Panzer-Abteilung 102 (later 502), Tiger I, British/Canadian Sector
= Schw. Heeres-Panzer-Abteilung 503, from middle of July till August 1944, equipped with Tiger I and the first regular company of Tiger II , mostly British/Canadian Sector - after the beginning of the German withdraw to the east, some of the tigers of this Abteilung have fought against American Units eastwards of the River Seine in middle/late August 1944
And I have forgotten some Tiger II of Panzerlehr which have been from the first production line and which haven´t been used in bigger battles because of technical problems.
So, in the American Sector during June/July 1944 normally no GI could have seen any Tiger Tank (may be, some fought in the assault against Mortain at the end of July - at the moment, I am not sure about this).
Regards
Frank