yes by using the achievement tracker HUD element or the 3D player model preview. Both can be enabled and disabled. So you can put HUD crosshairs in those and switch between them with their respective commands
guide

This is a really old method and almost nobody does it anymore because VTF crosshairs are way more convenient for just about everything

Shoutout to Essentials crew for the event and production
Shoutout to Fine Christians for the fun games, and all teams we played
Shoutout to pie4life and Emily (zod's gf) for keeping the hype during grand finals
Shoutout to Piggles for bringing the energy both in and out of game
Shoutout to Sunday night gang for the fun night out in Birmingham (we did not even get stabbed)
Shoutout to Chloemew, Pope and Bag for the fun casual tournament run
Shoutout to JLEBS for being hotel buddies
Shoutout to Catangerine and Silves for being airport buddies
Shoutout to the dad with an old school DOOM shirt playing TF2 in the TF2zone with his 2 sons
Shoutout to impromptu TF2 karaoke (security shut us down 3 songs in)

TF2zone was great. Hoping it comes back next year
This was a great community LAN due to the TF2zone
From a spectator POV this had potential to be one of the best insomnias ever if the dates hadn't been moved
So next year looks very promising if insomnia can be convinced to try it again

some pics (only 12)

https://i.imgur.com/QFh7Qrz.png

https://clips.twitch.tv/LongStrangeOrcaDancingBaby-jH5AN7RESW8GYqDP

https://www.youtube.com/watch?v=QWIrWhfUwz0
saw afterwards i did use txt files that already had left arms removed

whilst im here might as well do some bug reports:
Removing left arm on heavy gloves caused animations to break (only tested thisd for gloves of running urgently)
Static reload seems to not work on scout pistols (only tested on winger. happened in the video posted above)

that mod has custom materials, not custom animations. There are currently no animation based mods that remove all arms (left arms are possible w horse's mod)

just a heads up: 2nd link autodownloads if anyone clicks it

any source for how this works?
I assume it's using a custom model, but UV mapping an in-game material to it + preloading, but I'm not sure if that's what you're referencing

it's only appropriate that one of the most entertaining NA threads in a while is killed by europeans
anyone got more funny elijah clips post mortem or do we stop clicking when this is bumped?

it's yzncross
his twitch About has a cfg download, which has it in the thumbnails folder
https://drive.google.com/file/d/1NXfl4UMrSOIaSz9XseKtPszvl13z4wPf/view

https://clips.twitch.tv/SuccessfulCorrectPieOneHand-ZqxklUkZHSBMCDDY

https://clips.twitch.tv/WildHilariousWallabyTBCheesePull-41LRxskeTBdg20v9
https://clips.twitch.tv/RenownedHandsomeGoblinTBTacoRight-w1Kx1Dsml97xipaQ
https://clips.twitch.tv/QuaintCoweringRatMoreCowbell-e4fgACEt8I5Nw_Cx
https://clips.twitch.tv/GrotesqueLaconicMacaroniRitzMitz-HK27GdUtvBvYERwB

preloading won't work with custom models or particles. Viewmodel animations are one of its few uses

coincidentally a cfg.tf pack i downloaded last week actually did the same for sniper rifles.
I played a full scrim with it and got flashbanged multiple times because it was sniper v sniper on product.
it's the reason I instantly made a post here to tell ppl it's horrible

can't imagine how it'd be like to play w that for a long time

Figured I'd look for uses in 6s
(WARNING: Probably bannable. Definitely shouldn't be allowed for altering sniper rifles)

I'd not use this for scouts because it'd be a laser show
It doesn't work for sentries
Sentries have no weapon txt file. tf_weapon_wrench and tf_weapon_robot_arm are just the melee attributes

It works for heavy
tf_weapon_minigun has a "tracer_effect" attribute. red has yellow tracers, blue has green tracers

It does "not" work for snipers
Sniper rifles have no "tracer_effect" attribute. tf_weapon_sniperrifle, tf_weapon_sniperrifle_classic and tf_weapon_sniperrifle_decap are just copies of eachother. So the code for the classic's, machina's and hitman's heatmaker tracers are handled elsewhere.
However, in the screenshot, I added a tracer_effect line to the sniper rifle to see what'd happen.
It works offline! but once you join an actual server you get spammed with error particles. Do not use this. You might think "oh I can know where snipers are at all times now". Nope. It will flashbang you if you are close to ANY sniper, both enemy and friendly. And even at a distance it will block your view of the sniper by being very obstructive (and the sniper himself does not have that issue so you get shot at)

it's in the FAQ in the main post
(answer to the question "Help! It doesn't seem to work, or it's working sometimes but then stops working after I join multiple servers.")