[backwards]

After looking here: https://github.com/VSES/SourceEngine...state.cpp#L125

Something like this should work and wont require signatures.

PHP Code:

#include <sourcemod>
#include <cstrike>
#include <sdktools>

bool bomb_set_up;
int site;

public void OnPluginStart()
{
    HookEvent("round_start", round_start_event);
    HookEvent("player_spawn", player_spawn_event);
    HookEvent("bomb_planted", c4_bomb_planted);
}

public void round_start_event(Handle event, char[] name, bool dontBroadcast)
{
    bomb_set_up = false;
}

public void player_spawn_event(Handle event, char[] name, bool dontBroadcast)
{
    int userid = GetClientOfUserId(GetEventInt(event,"userid"));
    
    if (bomb_set_up && IsClientInGame(userid) && IsPlayerAlive(userid) && GetClientTeam(userid) == 3)
    {
        int ent = -1;
        ent = FindEntityByClassname(ent, "planted_c4");

        if(ent != -1)
        {
            float c4_position[3];
            GetEntPropVector(ent, Prop_Send, "m_vecOrigin", c4_position);
            
            int target = -1;
            
            for(int i = 1;i < MaxClients+1;i++)
            {
                if(IsClientConnected(i) && IsClientInGame(i) && GetClientTeam(i) == 3 && IsPlayerAlive(i))
                {
                    target = i;
                    break;
                }
            }
            
            if(target != -1)
            {
                float player_position[3];
                GetEntPropVector(target, Prop_Send, "m_vecOrigin", player_position);
                
                TeleportEntity(target, c4_position, NULL_VECTOR, NULL_VECTOR);
                Event BombPlanted = CreateEvent("bomb_planted");
                if(BombPlanted != null)
                {
                    SetEventInt(BombPlanted, "userid", target);
                    SetEventInt(BombPlanted, "site", site);
                    FireEvent(BombPlanted, true);
                }
                
                TeleportEntity(target, player_position, NULL_VECTOR, NULL_VECTOR);
            }
        }
    }
}

public void c4_bomb_planted(Handle event, char[] name, bool dontBroadcast)
{
    if(!bomb_set_up)
    {
        site = GetEventInt(event,"site");
        bomb_set_up = true;
    }
}