Mech's ranged attack

**Describe the bug** In some cases, the Mech is hitting at 2-range tiles. **To Reproduce** Steps to reproduce the behavior: 1. Start the map "Neutrality". There's 2 neutral HQ's at the center of the map. 2. Position the Infantry at the right HQ. Pass turn. 3. The enemy will make it's move, and when it comes to the Mech, he'll just move 1 tile and do a ranged attack. **Expected behavior** He would just attack at close-range, since it's impossible for him to do a ranged attack as a Mech. **Screenshots**    **Desktop (please complete the following information):** - OS: Windows **Smartphone (please complete the following information):** - **Additional context** As far as I tested, this only applies when an unit stands at the HQ, if it was a city, he would just move over the city and hit at 1 range.