ARC had soldiers, the team just never wanted them.
Which is exactly my point. In the first season, they constantly used soldiers as backup even though they were just a small group of consultants. But in the second, they were part of a massive organization with a bunch of dedicated soldiers working specifically for them -- and they never bloomin' used them!!
It was idiotic. I can see the storytelling reasons for wanting the protagonists to carry more of the burden of facing danger on their own, but if that was the writers' and producers' intention, then why create the ARC in the first place? Why give them more resources at the exact time you decided to show them using fewer resources? It never made any sense.