This is a model of the A bombsite from the map De_dust2, from Counterstrike: Global Offensive.
It was made it in blender, taking a top down minimap view, drawing around it and extruding upwards, followed by additional detailing.
The model is about 90% accurate, at this size there is some small details missing, but atleast it's easy to print.
I've printed it scaled to about 120*100*25mm which took around 5 hours, on a printrbot simple metal. I recommend some support material for the CT spawn area, which was moderately easy to remove. (Please let me know if you print it on a bigger bed, I'd love to see a larger version!)
This was inspired by a model made of the B bomb site shown here: https://www.reddit.com/r/GlobalOffensive/comments/4homjw/i_3d_printed_de_dust2_b_sitebottle_cap_for_scale/
files for which are available here: https://www.reddit.com/r/GlobalOffensive/comments/4huten/this_is_the_guy_who_3d_printed_de_dust2_b_site/
I may try and model some parts of the other maps, maybe mirage or inferno bombsites, let me know if you're particularly interested in any of them. Alternatively I might try and do the whole of dust 2, aiming to create like a 3D poster that could mount of a wall... anyway, stay tuned.