From Halopedia, the Halo wiki
As Braidenvl has pointed out to you before, there is no source for ships other than Strident-class frigates having shields. I know it's possible — even probable — that other ships have them, but the point is that Halopedia isn't your personal speculation forum. If we added everything that is merely "probable", not proven, we'd quickly lose our reputation as a reliable source of canon info. And the presence of shields on the UNSC's state-of-the-art flagship and its escorts isn't very strong proof of all Navy ships having them. As for your edit on the energy shielding page, as I said in the edit summary, the shielding on post-war UNSC ships was already covered in an above section.
Why did you reverse my edits in the ships pages? I know "lots of things are probable" but it's always better having new information than not having them. Also, not only the frigates on board of the Infinity have shields, but all the other frigates have them too (would it make sense to put the shields just on a few ones? i think it wouldn't). Please don't be annoying, re-revert all my changes. Thanks, Firex.
Why did you reverse my edits in the ships pages? I know "lots of things are probable" but it's always better having new information than not having them. Also, not only the frigates on board of the Infinity have shields, but all the other frigates have them too (would it make sense to put the shields just on a few ones? i think it wouldn't). Please don't be annoying, re-revert all my changes. Thanks, Firex.