Player with Forbidden City Wonder that attacks with Riflemen patrolling

[Gears]

I am sharing 2 screenshots which highlight the riflemen on guard patrolling and defending the Forbidden city Wonder.

https://ibb.co/pyMWv6V

https://ibb.co/DgG31wt

Is the player cheating?

 

[King Crimson]

Could there be some towers or maybe a fort hidden underneath?

 

[Cannibals]

That looks like the men on top of the fort.

https://i.imgur.com/vucMbfa.jpg

 

[Uhuru]

Yes, this Fort stands on top of the Forbidden city.. Cheater!