One of the most famous incidents of the campaign must be the Tiger ace Michael Wittman's infamous rampage through Villers-Bocage (British/Canadian sector) on 13 June:http://en.wikipedia.org/wiki/Battle_of_Villers-Bocage
Having knocked out 13-14 tanks, two anti-tank guns and 13-15 transport vehicles of the 7th Armoured Division, Wittman's Tiger was however then disabled by a 6-pounder (or possibly by a Cromwell tank). Wittman and his crew escaped on foot (they were killed later in a well-known and still controversial engagement on 8 August).
Might this not be a tailor-made replacement for the Stalingrad 'sniper' card mechanism? i.e., I play the 'Tiger rampage' card; you cancel it with the 'knock out the Tiger' card (or vice-versa).