Age of Empires III Easter Egg - Monster Truck

1. Open AoE 3
2. Play Single Player (It can be custom scenario)
3. hit ENTER
4. write "tuck tuck tuck" (without quotes)
5. A red monster truck will appear where you send HC shipments.
This monster truck will kill all units near it. It has "Tommy" written on it, that's why I thought it is something personal. I am not sure what, maybe Tommy is name of one developer?