
Aspect ratios that are lower than 4:3, like 5:4 or 1:1 are not supported

For the transparent viewmodels; if you're using mastercomfig, get the addon from the website, 
but if not then put this in your autoexec file in "tf/cfg/autoexec.cfg" or create one if it doesn't exist

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// Transparent Viewmodels

mat_motion_blur_enabled 1
mat_motion_blur_strength 0
mat_disable_bloom 1
mat_hdr_level 0
mat_colcorrection_disableentities 1
mat_colorcorrection 0