[ShadowMarioBR]

I tried making my hits while rocketjumping & on ground be crits, but it's not working for some reason

bool rocketJumping[MAXPLAYERS + 1]; //This line is over "Plugin myinfo"

public void TF2_OnConditionAdded(int client, TFCond condition)
{
    if(condition == TFCond_BlastJumping)
    {
        rocketJumping[client] = true;
    }
}

public void TF2_OnConditionRemoved(int client, TFCond condition)
{
    if(condition == TFCond_BlastJumping)
    {
        rocketJumping[client] = false;
    }
}

public Action OnTakeDamage(int client, int &attacker, int &inflictor, float &damage, int &damagetype, int &weapon, float damageForce[3], float damagePosition[3], int damagecustom)
{
    if(rocketJumping[attacker] && !(damagetype & DMG_CRIT) && (GetEntityFlags(attacker) & FL_ONGROUND))
    {
        damagetype|=DMG_CRIT;
    }
}

[nosoop]

While rocket jumping and while on the ground? I don't believe you can be both at the same time.
You may want to use or to allow either to crit:

public Action OnTakeDamage(int client, int &attacker, int &inflictor, float &damage, int &damagetype, int &weapon, float damageForce[3], float damagePosition[3], int damagecustom)
{
    if(TF2_IsPlayerInCondition(attacker, TFCond_BlastJumping) || (GetEntityFlags(attacker) & FL_ONGROUND))
    {
        damagetype|=DMG_CRIT;
        return Plugin_Changed;
    }
}

Unless you omitted it for brevity, don't forget to call SDKHook to hook OnTakeDamage on all the players.

[ShadowMarioBR]

Originally Posted by nosoop While rocket jumping and while on the ground? I don't believe you can be both at the same time.

Yeah, that was a mistake. It is "Or", like you said.
The main problem was that i forgot about the Plugin_Changed, thank you very much mate!