How to spot if someone is using mods in Half-Life 2

I am leaving Gamejolt for now because i just no longer find it intereseting, so as a goodbye have this fun little Half-Life montage that i made in under 20 minutes.

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Mr Crowbar Man

Canon Chip

Drew Gordon Freeman! :D

The creator of Deadtubbies is racist and cannot take criticism. Do not play Deadtubbies!!!

#GJAsks

I have surprisingly not been playing a lot of games lately, but the one I have been playing the most is Classic Sonic Simulator on Roblox. There I mostly make my interpretations/takes on cut Sonic 2 levels

Who would win this battle? -Left Side (Quick Man, Doomguy, Pink, Gordon Freeman, Chip)? OR -Right Side (US Army)? To even the odds, both sides are a bit nerfed: -The Left Side is on FENT -The US Army has weapons that don't match their ammo

#GJAsks