Is Firefight hard?

In my opinion Firefight has always meant to be played that way, feel the struggle as you fight against the covenant and the elderly prometheus, it feels like a challenge, like a real war, the human race might feel weak against but at the end of the day, we complete the objectives, it’s better this way, watching 5 spartans against 1 knight, being chased by 3
soldiers because you know, its hard against one… Its not a walk in the park, its supposed to be a walk through hell and luckily that’s how it feels. So the question is, Is Firefight hard? Yes, thanks god it is hard.
TheMeowingTaco

It also need to be fun though.

Yes it is hard. But not too hard. It’s by far the most fun mode for me