[quote=@Clockwork giant]
You said that we're a little more technologically advanced than IRL ww1, but could you be more specific please? I'm starting to scetch out some ideas and I don't want to be too advanced or too simple.
[/quote]Well, nations that were most concerned with a new Martian invasion could have tanks and gas masks, for example.
It's less about going steampunk/dieselpunk and more about you get things developed earlier.

EDIT: Austria for example may develop these.
[img]http://www.wardrawings.be/WW1/Pictures/1-Vehicles/Centrists/Austria-Hungary/1-Tanks/Motorgeschutz/Right.jpg[/img]
http://www.doppeladler.com/kuk/burstyn.htm