For the first time here on Eurobricks, I'm going to get down to business straight away.

I plan to build a CoD: ZOMBIES MOC, for myself, and (hopefully) to display at the Perth Train Exhibition on the PALS display (I have yet to contact them about this).

I have a basic idea of what I am building, however, I do not have enough to actually start it.

This is where you guys come in:

I would like to hear ideas of what format to build in, e.g. hinged, playable building, or a plain building, with little features, this will help me get a solid idea of what I'm building.

I also need to know where would be good places to stick barricaded doors/windows, to recreate the feel of a ZOMBIES map.

I already have some ideas which I want on this MOC (see below):

A military-esque facility

These elements to guard the perimeter in areas that aren't walled instead (I only have 7 of these, so I have to know where to use them(As well as use 1/2 as gates)

A guard's quarters inbuilt to the facility, with a removable wall section (doubles as a zombie entrance)

A detector object, that is built out of two Exo-Force robot arms and a trans-blue 4L piece on either side of the wall

A bridge that spans from a double-storey warehouse to the facility

The warehouse and facility to take up a 48x48 board each.

Additional notes:

I have just over 2500 1x2 w/ ridges in Light Bluish Grey and 1500 1x2 in Dark Bluish Grey, and these will make up the walls, and possibly some SNOT flooring.

I understand this may be a huge ask of the community to contribute to the making of something with what appears to have so many specifications, and I would like to say a big thank you to those who help in advance. This MOC is really important to me finishing it, because -quite literally- I can't build anything else until this is built.

If I were you i'd go for minimal playability seeing as this will go on display. maybe an elevator using techniques similar to that in the official TLG Death Star which would irradicate the need for stairs.

I'd only make '3 walls' for the MOC since it'll be used for display, that way you can make the most out of the pieces you have.

Best of luck.