I'm curious as to whether or not the depiction of battle scenes are accurate, in terms of strategies, tactics, attire, weapons etc. even women in these battles or whether or not the battles were based off real events
Here are some battle scenes for experts to look over:
OP, feel free to submit specific battle scenes you want analyzed with either videos or your own description to help experts (who may have seen Vikings) to evaluate the show.
Also, while you wait for answers, here is the FAQ section on the historicity of Vikings.