As the men are resting and lounging around, Lovelace has taken his trigger and trigger guard off his rifle so he can give it a good cleaning. The rifle is suddenly back together when Hanley arrives to tell them that they are moving out.
About halfway through the episode, Lovelace (John Bolt) sits on the bank of the creek where he is eventually forced to abandon his new boots. As he settles into place and begins to soak his feet, one can twice hear the creak of wood coming from what is supposed to be the dirt bank he is sitting on, revealing that it is actually a wooden sound stage, not a real creek bank. Update: Later, when the German patrol comes by and finds Lovelace's boots, the wooden "ground" can be seen to shift as they walk across it.
As the recon team sees the German tanks go by, a close-up of one shows a reverse image. The numbers are shown backwards.
A soldiers feet would never have survived wearing GI issue combat boots with no socks as Lovelace did. Even more so a soldier who has forded a creek a couple of times and who's feet are soaking wet. Anyone who's been there knows.
The stock footage used in the episode includes Panzer I and Panzer II tanks, neither of which were in front line service in 1944. The footage is presumably from earlier in the War or pre-War training manoeuvres.
Doc mispronounces Caje's name. It should be pronounced as Cage, but the way Doc says it, it rhymes with Badge. Everyone in the squad, including supposedly Doc, is very familiar with Caje and has heard Caje's name dozens of times. There is absolutely no reason why the character of Doc would mispronounce his name.