This For Honor video proves you can take on multiple opponents by yourself, and win
So long as you don't panic, you can totally overcome multiple opponents on your own in For Honor.
For Honor's mechanically-dense nature means you really have to know the strengths and weaknesses of your class. The game is already taxing enough in 1v1 situations, let alone when getting wailed on by more opponents than you can handle.
But, as this video from Twitch streamer Iskys (via FragmentShader) proves, if you keep your cool, you will prevail. At first, the streamer is seen fighting 1v1, when another enemy decides to join the fight.
With most of his blocks and parries on point, Iskys triggers Revenge mode and manages to take one out, reverting the fight back to 1v1. But it doesn't end there, after nearly killing the remaining opponent, another comes rushing in.
Our hero now has a single bar of health, but thanks to competent blocking, he gets to call in Revenge mode again. Which he does, allowing him to get rid of one, and once again turn the fight into 1v1. Despite having very little health left, he succeeds in devastating the - nearly full health - final challenger.
What's impressive is that he never once resorted to any untoward tactics, and kept all fights honourable. We can't promise you'll be as good as Iskys when you read our For Honor guide, but we can promise you won't be bumbling and mashing your way through fights.