Too many unknowns
Although I have voted, a great deal depends not only on the type of combatant but who the team members are, even some Special forces don't do that well sometimes and on other occasions normal grunts or people achieve superhuman results.
How about a Ninja using his stealth skills to get into the straship troopers dressing room to steal an MI suit with his skills and the intuitive operation of the suit he should be devastating and that is just one potential scenario.
Strictly speaking the MI suits with their firepower and flexibility going in for total all out war from minute one should be able to wrap up just about everybody in time for an early lunch.
Biting the hand that feeds IT
