This is a long existing glitch. It allows Player to do oob tricks in some maps. But due to some Cheaters used it to farm scores in ranked servers, devs have fixed it in normal games. See

https://steamcommunity.com/app/563560/discussions/2/3761102779884982811/

However, since it is very useful in speedrun and can be used if one downgrade the game, the devs have came to a final decision that they will keep it as "technically not cheating". See

https://github.com/ReactiveDrop/reactivedrop_public_src/pull/474

The glitch now can be enabled via one custom challenge.See

https://steamcommunity.com/sharedfiles/filedetails/?id=2928119206&searchtext=Speedrun

The question is, are these two glitches allowed or not. As they are not "entirely" fixed, and devs somehow agree to use them for speedrun.

Another question is, is beta version allowed for speedrun.

If possible, could you please create mission specific leaderboards like original alien swarm?

For co-op runs, players would have different loading times due to different hardwares. When it come to the loading time subtraction, which player's time should be used? The last one loaded into the game, the host, or the recording player?

If a player has a very slow pc and he is recording, others will always have enough time for weapon and marine adjustment. It is the same for the host. That is to say. A team Could use hardware strategy (or cpu usage strategy) to ensure all other players have plenty of time to change weapons.

Since the devs is preparing to add auto-ready settings into advanced setting menu. And auto-ready is widely accepted by dedicated servers And game community. My suggestion is to revise rule to specify the loading time for co-op. Suggested revisions are:

1. Please enable auto-ready via console, type "rd_ready_mark_override 1".(this will ensure the last loaded player is ready immediately)
2. Loading time starts at the first frame of loading screen appears, and ends on the first frame of last loaded player's ready mark appears.
3. All players are not allowed to change marine, weapons or equipment until the last player loaded into the game (i.e. ready mark appears). This can be verified by observing the menu animation and ready mark. Use lobby 8 players mod to guarantee this rule.