Plutonium

I tried installing a mod in "mods/modname" and setting up a FastDL web "https://YOURWEBSITENAME.000webhostapp.com/iw5/" but I get this when trying to join my own server

maybe I did something wrong I dunno

I wanna know if there's a command like that so it's more comfortable than typing maprotate again and again until I get to that gamemode

I'm using IW4Madmin so if there's a command there I could use it too

Okay, but what IP address should my friend join to access this website?
He can't join with the same IP I join which is 192.168.0.117:1624 (I think It's my Ipv4)

I want my friend to join this site apart of myself

Is it possible?

I would like to make a only sniper gamemode modifying the dm.cfg but don't kow how, any ideas?
Please help