I found it!

[GrndAdmrlPellaeon]

Here is the prototype AT-AT I was talking about. We were told to post ideas here. The one on the top.

[Raptor]

bottom one is better.

[Noret]

my vote is top

[Corey]

Bottom is the canon one. It was a Republic thing.

[Meyer]

and who would get that?

[Scarecrow63]

Theres also a at-at toy with instead of the main body, theres a giant ion cannon there

[Corey]

and who would get that?

Like I said, it's a Republic thing. We had it planned for a tech level 5 unit for them

Theres also a at-at toy with instead of the main body, theres a giant ion cannon there

Thats  uncanon.. it was made by someone for a contest and I don't see how it could be all that useful.

[Marko Dash]

it might have a use. it would be like a mobile ion cannon in space, to defend the worlds that don't have a hypergun yet. on land you could have it be like a magnapulse gun that can move and defend itself, but not drop troopers.