Is there any way to determine if a Flashpoint requires you to fight a Guardian?

In Saints Row 4, when clearing Flashpoints, is there any way to determine if you are going to fight a Guardian after clearing the aliens, or is it random?

Solution 1:

For the majority of the flashpoints in the game, there is no way of knowing whether a Warden will appear.

According to the Saints Row Wiki:

All Flashpoints are manned populated by standard Zin soldiers. Some Flashpoints include mandatory Warden battles, such as Burns Hill (north), Brickston (north-east), Yearwood (north), The Grove (east) and Henry Steel Mills (south-west).

So other than those five, Wardens appearance could be random.