Guy Gardener wrote:
If Admiral Janeway actually wanted them to sneak through that Enemy Mine, she should have brought an advanced cloaking device with her, not armour.
She brought both. Through some magical television macguffin, the armor was compatible with Voyager's technology but the advanced cloaking device was not.
Recall that Admiral Janeway parked her shuttlecraft at the doors of the Unimatrix Complex.