Questionable Ethics is the eleventh chapter in Black Mesa; it was designed around two major principles: exploration and story expansion. It acts as an eye opening chapter for the player, a realization that not everything is as it seems at Black Mesa, and that unethical experiments on various recovered Xenian specimens are regular occurrences in the deeper, more restricted sections of the facility.
The overall design of the chapter was done by Chris Horn; both the blockout work on the interior levels and planning the overall look and feel to them.
I was tasked with adding detail and polish to the first interior level giving it a dark and uneasy feel. My other tasks while working on the chapter was both the construction and detailing of the exterior level. Chris had drawn up a plan for this with an outline of the level layout and gameplay ideas; an image of the plan can be found here . Taking from this I expanded the look of the facility exterior with the addition of the employee car park and the building exterior; how it appears the facility was built deep into the rock.
With the 'Definitive Edition' update I also had the oppertunity to revist the exterior level to update the terrain, rocks and foliage to meet the standards of our other updated surface maps. For comparrison here is a before & after.