Hunting rifles in certain chateus.
n00b stick definitely.
Tiger Ace Black Tiger tank hidden somewhere with a number of Allied kills to its credit scrawed on it. Hidden Calliope Sherman
Xpack with plunger
Coloured Smoke grenades to mark enemy tanks for airstrike etc.
Shoe mine kit and other anti-personnel mines.
Deployable Barbed wire kit.
Mostly easter Eggs, just one hidden somewhere and not respawnable.
The correct turret for early war Tiger II in Op. Goodwood.
Definiely at least one musket somewhere either in NA or in some Chateau in France.
Left-over French kits here and there.
Ah yes, a propaganda SDKFZ251 with playing propaganda from its megaphon only as a static in some field in the Bocage that can be destroyed.
Throwing knives.
Napalm-carrying airplane. Also, single spawn.
My list is endless