In my story Aztlan Portal many of the characters are military personnel. If you have served in the armed forces, in particular Army Infantry or Marines, you may be aware that it is common for (NCOs in particular) to Emphasize particular words in the middle of a sentence, but not shouting.
It is not appropriate to use an exclamation mark(!).
Rarely I use bold I have almost never used the option of Strong.
What I have been Doing is using Capitalization to show Emphasis to show that a character is razing their voice, or using inflection, but not shouting/yelling, etc.
For example: Drill Sergeant Smith said in a tightly controlled voice, "Whyfor Individual have you neglected to bring your Gas Mask to the NBC chamber?"
(In "Drill Sergeantease {the Language exclusive to Drill Sergeants} 'Whyfor' is a word, and Individual may be used in place of a name and/or as a vile insult.)
My new Proofreader has suggested severely limiting my use of Capitalization to denote emphasis, and to instead use underlining. (I am not sure that underlining will work.)
I am asking for suggestions from my fellow writers.