Not really, EXALT only shoots you or throws grenades, the aliens have a lot more dirty tricks.
just yesterday, i had 5 thin man keep my entire squad on lockdown with their acid, while i was waiting for 3 seekers to show themselves, when a cyberdisk popped up and lobbed a grenade around.
needless to say; that mission didn't really go as planned.
depending on the aliens you see, you need to be spread out, close together, fast moving and slow moving all at once, EXALT just needs semi-spread at medium speed, and you know what you will face ahead of time.