protected function readScenarioHeader()
    {
        $nextUnitId = $this->readHeader('l', 4);
        $this->position += 4;
        // Player names
        for ($i = 0; $i < 16; $i++) {
            $this->position += 256; // rtrim(readHeaderRaw(), \0)
        }
        // Player names (string table)
        for ($i = 0; $i < 16; $i++) {
            $this->position += 4; // int
        }
        for ($i = 0; $i < 16; $i++) {
            $this->position += 4; // bool isActive
            $this->position += 4; // bool isHuman
            $this->position += 4; // int civilization
            $this->position += 4; // const 0x00000004
        }
        $this->position += 5;

        $elapsedTime = $this->readHeader('f', 4);
        $nameLen = $this->readHeader('v', 2);
        $filename = $this->readHeaderRaw($nameLen);

        // These should be string IDs for messages?
        if ($this->version->isMgl) {
            $this->position += 20;
        } else {
            $this->position += 24;
        }

        $this->analysis->scenarioFilename = $filename;
    }