1)
What are the connotations of "ve'Lo Nifkad mimenu Ish?
1.
Rashi #1: It means that not even one man (soldier) was missing (killed - Yevamos, 61a). 1
2.
Rashi #2 (in Shir ha'Shirim, 4:2) and Ramban (citing Shabbos, 64a): It means that not one of the men was suspected of Z'nus. 2
3.
Rashbam: It means that not one man died in a plague as a result of being counted. 3