[jedyny]

Hello,

Is there any way to set spectator index/observer slot for a given player in CS:GO?

[Bacardi]

...server create first 64 index as player entity.

Player can join in 4 different team index.
0 unknown
1 spectator
2 terrorist
3 counter-terrorist

So do you mean team change ?

- There are not like observer slot. Unless you create yourself that kind system with plugin.
- Then there is SourceTV relay, but it is "whole different server".

[BeepIsla]

// Force client to spectate target
SetEntPropEnt(client, Prop_Send, "m_hObserverTarget", target);

You may have to force "m_iObserverMode" as well because it defines if the client is in first person, third person, or free cam.