[ici]

I don't know what exactly you're trying to achieve.
The following script will allow alive terrorists to run the command once per round.

PHP Code:

#pragma semicolon 1

#include <sourcemod>

new bool:g_bCmdUsed[MAXPLAYERS+1];

public OnPluginStart()
{
    HookEvent("round_start", Event_RoundStart, EventHookMode_PostNoCopy);
    RegConsoleCmd("sm_wdh", Command_Wdh);
}

public OnClientConnected(client)
{
    if (g_bCmdUsed[client]) {
        g_bCmdUsed[client] = false;
    }
}

public OnClientDisconnect(client)
{
    if (g_bCmdUsed[client]) {
        g_bCmdUsed[client] = false;
    }
}

public Event_RoundStart(Handle:event, const String:name[], bool:dontBroadcast)
{
    for (new i = 1; i <= MaxClients; i++) {
        if (g_bCmdUsed[i]) {
            g_bCmdUsed[i] = false;
        }
    }
}

public Action:Command_Wdh(client, args)
{
    if (!client) {
        ReplyToCommand(client, "You cannot run this command through the server console.");
        return Plugin_Handled;
    }
    
    if (GetClientTeam(client) == 2) {
        if (g_bCmdUsed[client]) {
            ReplyToCommand(client, "You can run this command once per round only.");
            return Plugin_Handled;
        }
        if (!IsPlayerAlive(client)) {
            ReplyToCommand(client, "Only alive terrorists can run this command.");
            return Plugin_Handled;
        }
        PrintToChatAll("%N möchte die Ansagen wiederholt haben", client);
        g_bCmdUsed = true;
    } else {
        ReplyToCommand(client, "Only alive terrorists can run this command.");
    }
    
    return Plugin_Handled;
}