I see this 4 year old thread slipped under the radar.
WYSIWYG for me is fulfilled enough as long as my opponent shows upgrades (special/heavy/special CCW weapons) and at least some of the standard equipment, so in the case of chaos marines a few daggers here and there, holster pistols and a light sprinkling of grenades is always useful, just to remind yourself and opponents who may not be familiar with chaos loadouts.
plus the extra details look better than nothing
WYSIWYG for me is fulfilled enough as long as my opponent shows upgrades (special/heavy/special CCW weapons) and at least some of the standard equipment, so in the case of chaos marines a few daggers here and there, holster pistols and a light sprinkling of grenades is always useful, just to remind yourself and opponents who may not be familiar with chaos loadouts.
plus the extra details look better than nothing