cl_forwardspeed, cl_sidespeed and cl_backspeed are "exploitable".

[metita]

This is known as "Fast-Walk" or "Fast Silent Walk"

Credits to Rainnegan:

How to reproduce it:
You need to set cl_forwardspeed 149;cl_backspeed 149;cl_sidespeed 149 and you will be able to perform a "Fast Walk" with almost no footsteps sound.

Video:
https://www.youtube.com/watch?v=8fB2ODi6L_U

This should not be usable at all on multiplayer servers.

[Maxi605]

Why should the player have the ability to modify the speeds? shouldn't be just usable at multiplayer, should be removed, doesn't make sense to give the player the ability to modify his speed (If that's even what this is for, maybe i got it wrong).

[ghost]

It would easy to workaround using a joystick.

[10th]

Maybe should add?:
sv_minspeed 0-320-400
or
sv_min_forwardspeed 400
sv_min_backspeed 400
sv_min_sidespeed 400

[metita]

Maybe should add?:
sv_min_forwardspeed 400
sv_min_backspeed 400
sv_min_sidespeed 400

Seems a good idea.

[JoelTroch]

Not sure at 100% but the reason that client has speed CVARs is likely for client prediction.

[Destro-]

As well causes problems with some mods when they give too much speed (like zombies)

I think not any mod uses it to give different speeds depending on the direction (with client prediction), it should be able to remove, but wonder if it affects jump strafe ?

if it is useful can used free entity-var or create new message to define from server side

[rtxa]

It should be to the same value as sv_maxspeed

[SamVanheer]

@rtxa it already is:

halflife/pm_shared/pm_shared.c

Lines 1068 to 1075 in 5d76170

	//
	// Clamp to server defined max speed
	//
	if (wishspeed > pmove->maxspeed)
	{
	VectorScale (wishvel, pmove->maxspeed/wishspeed, wishvel);
	wishspeed = pmove->maxspeed;
	}

[SamVanheer]

Probably a duplicate of #1999