Campaign legendary achievement

Games Other Halo
1

Does anyone know if this has to be done solo or can it be co-op?

I tried searching a previous post simply to bump it, but the search window is giving me fits.

Thanks in advance.
Cheers,
Brad

2

It can be done either way!

However, it has to be all one or the other, not combined. As in, you can’t complete half the campaign solo and the other half co-op!

3

Thanks.

> It can be done either way!
>
> However, it has to be all one or the other, not combined. As in, you can’t complete half the campaign solo and the other half co-op!