As @scat1620 posted in the Chongqing China mission 4 location discussion topic, the Hitman twitter account just posted an image from this location with a different design for the Facility Guards disguise.
I believe it could be a beta version of the outfit, where the security clearance was indicated only via an armband, where in the current version it’s via a badge.
Looking further I realised that where the posted disguise is all black, the current one have on it the colours of its own security clearance, facilitating identification and clearance mechanic visibility.
Maybe the change was made to have a smoother design and a better understanding/lecture flow in the level.
All the ICA Facility disguises are colour coded this way :
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Facility Security, level 1 access. Blue badge, blue beret, blueish shirt, blue patches
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Facility Analyst, level 2 access. Yellow badge, yellow tie
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Facility Guards, level 2 and 3 access. Yellow and red badge (armband in the twitter image), yellow fourragere, red shoulders, red beret
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Facility Engineer, level 3 access. Red outfit
Designers ! They’re doing their job well.