Issue with Stroke Around Multiple Objects

Hi, I am trying to add a stroke to multiple objects - a shield and outlined text. The text has the arc effect applied to it. Whenever I use the method of:

Group objects > Duplicate group > Object/Outline Stroke > Pathfinder/Unite > Object/Path/Offset Path > Delete result of unite

It doesn't look right.

Here's the logo. Trying to stroke the shield and outlined text "GAMEDAY":

Here is what it turns out as:

Thanks for any help!