It really depends on if you are planning to post it here.
if you are, then, according to the rules of this section of the forum, the submission should be suitable to read to a grade school class. That usually means, tone down the blood and gore descriptions, and other explicit content should not even be in it.
If you read my story, Battle for Irian Prime, yo wouldn't know, but that story was severely edited before I even considered posting it. There were even certain sections that I completely removed due to there content.
My best suggestion is to keep it at the lower end of the detail bar for stuff that could be considered extreme and violent.
Just my two cents worth...
BFM_Slayton