Tones of Mandarin words in military drills I notice from my observation  that the tones of words of mandarin in military drills are different from the normal ones given by dictionary, which is best illsutrated by a forum post of a local Chinese. What he said is true? Or is there any story or history behind this phenomenon?
The essential part for military drills is to sound loud and vibrant. It is hard to sound loudly when the drill is given in tones rising and falling, so all the characters in drills are pronounced in a level tone, only with the pitch varying. So those of higher pitch will seem like the #1 tone, and those lower pitch will seem like the #3 tone as compared.

向右转 443 -> 331 “想有——专——” or 131 “香有——专——”

齐步走 243 -> 331 “起补——邹——” or 131 “七补——邹——”