Chaplains are complicated. The Army has a dire shortage of chaplains so they may enter as first lieutenants (O2) as they attend their seminary education on condition they must attain a divinity masters and sponsorship from a religious organization. It used to be they would enter as captains just like doctors and lawyers.
Are they doing that now? I was looking at going through as an Army chaplain back in 2018 and I'm not sure if I'd heard about that. But I was just over the age cut off to go back in.