The more likely scenario would be that it follows something more like LA and Chicago, where the troops are more working riot control and maintaining a perimeter around ICE. Which if that's the case, the NG and Army would likely be having similar goals and no reason to fight.
But of course, it's all weird bullshit these days so who knows. Just proposing a plausible situation that could also fit the likely facts in case you need to not catastrophize tonight.