Are we able to speedrun l4d2 without bunnyhopping? Basically, I want to use skips, shortcuts, and tricks (such as common boosts). I say this because I can't bhop for now (hopefully in the future). I may try to bhop every once in a while in runs, though.

since you are the one pressing space (or which ever key) it is allowed. if you read game rules in l4d2 it can also help you. im not a verifier for l4d2 speedruns so i wouldn't 100% know but you can also text people who moderate l4d2 speedruns since they are always kind and have helped me when i had questions.

Yes it is perfectly fine to speedrun without bunny hopping, as long as you go by the set rules for the category you are running then you can speedrun in whatever way you like, instead of asking questions on here i could link you the main speedrunning discord so you dont have to ask stuff on the forums

the category extension page has a category for using the scripts

guys, how i can open admin addon on old versions?

you can't, such addons don't work for versions 2.0.9.1 and older

ah. thx