Honestly it feels like it's a default hud problem, since in my occasion the hud files that are responsible for summary scoreboard are default

also, hud name please?

To edit the panel on the first screenshot you need to edit HudRoundCounter.res file

About your question on how to use such timers with team status display ON, I can only give you one advice. In some of your HUD files you might see stuff like this (example from my hud):

    "ServerTimeLimitLabel"
    {
        "ControlName"        "CExLabel"
        "fieldName"                "ServerTimeLimitLabel"
        "xpos"                        "c-40"
        "ypos"                        "30"
        "zpos"                        "-1"
        "wide"                        "80"
        "tall"                        "20"
        "visible"                "1"
        "enabled"                "1"
        "labelText"                "%servertimeleft%"
        "textAlignment"                "center"
        "font"                        "Medium9"
        "fgcolor"				"White"

         if_match
		{
        "ypos"                  "39"
		}
    }

The if_match condition works if you use the team status display ON (tf_use_match_hud 1 option). So here with tf_use_match_hud 1 the 'ypos' for this ServerTimeLimitLabel object will be 39, and with tf_use_match_hud 0 it will be 30. So to use such fonts/backgrounds for the timers like on ur 2nd screenshot, you need to include those "font" and "bgcolor" lines under if_match {...} condition. Hopefully you'll get what I wanted to say! If not, contact me on steam and I'll help you out.

Then you need to check the HudMatchStatus.res file and edit the "TeamStatus" block in it

It's yahud CX

You mean the dialog which appears when you want to change the team status/name by pressing F4? Then it's HudTournamentSetup.res

If you mean the panels in tournament mode (like on the picture), then you need to edit HudTournament.res

https://imgur.com/TXuQojC

The summary scoreboard in casual is initially broken - all elements are bunched up in the same x position, but after the first time the scoreboard appears, it works fine. Is it a problem of the default HUD, or there's a fix?

https://i.imgur.com/gUEfR0T.jpg

Also, the class icons in scoreboard are stretched vertically, but the hud reload fixes the problem. Is there a fix anyways? (don't mind the catbots, the class icons are stretched anyways)

https://i.imgur.com/W7oCrEq.jpg

Can you tell me which file represents the gamemodes list, maps list and tick boxes in casual panel? Thank you

http://www.tf2newbs.com/newbs_blog/wp-content/uploads/2016/07/casual.png

Edit: it's matchmakingcategorymappanel.res in resource/ui.

Hello, got a couple of questions:
How to change casual badges' icons sizes in scoreboard?
Which file represents summary scoreboard at the end of the casual match?

have you typed tf_hud_showservertimelimit 1 into the console or executed file?
If you did, you should check the servertimelimitlabel part in resource/ui/hudobjectivetimepanel.res
Here's what it looks like in my HUD and it works:

 "ServerTimeLimitLabel"
    {
        "ControlName"        "CExLabel"
        "fieldName"                "ServerTimeLimitLabel"
        "xpos"                        "c-40"
        "ypos"                        "30"
        "zpos"                        "-1"
        "wide"                        "80"
        "tall"                        "20"
        "visible"                "1"
        "enabled"                "1"
        "labelText"                "%servertimeleft%"
        "textAlignment"                "center"
        "font"                        "Medium9" // my custom font, you should replace it with the one that your HUD contains

        "fgcolor"				"White"

		if_match // to hide it in casual
		{
			"wide"			"0"
			"visible"		"0"
		}
    }

Got a couple more questions,

1) Which HUD contains the uber effect meter like on this video? Woolen doesn't release it but it's originally some version of yaHUD, probably someone knows?

https://youtu.be/JOQ6UqSr9zE?t=411

2) My main menu is default (gamemenu.res and mainmenuoverrides.res are removed) but there are little black-ish bars of different thinkness between the buttons (marked in bottom right). What should I look into in clientscheme (?) to try and fix it? Thanks!

https://image.prntscr.com/image/Y6Qq1kkvSI_Pz6dkpFfGow.png

thank you so much for your detailed anwer, now it's similar to CMYK version for me, but is it possible to make both blu and red boxes semi-transparent?

A problem with tournament ready mode in Yahud CX, the player boxes are not filled up completely on one of the teams (1st pic), but on the very similar Yahud CMYK there's no such problem (2nd pic). What file should I look into to fix the problem?

https://i.imgur.com/U9lmNIU.jpg

https://i.imgur.com/yWMRcSh.jpg

HudMatchStatus.res doesn't affect the timer panel itself (the rectangular one with blue, red and black boxes and black points circles, to be exact), unfortunately. I removed the hudmatchstatus.res file from that hud (that DOES have the custom panel) and the panel was still there. Probably these are the vtf/vmf files that make the difference?

How to install a custom time panel for casual or competitive matchmaking into my hud, something like on the picture? Which file is that and what should be done for it to work, also where is it located? Thanks

https://image.prntscr.com/image/Hsy0cyFKQVa8tkT1qWMttg.png