"What type of game should this be?"
-"Yes!"

This Frankenstein's monster of a game made by completely unrelated gameplay components & ideas has no right to be this fun.
Its the biggest voriety i seen in a source game second only to Gmod (but atleast here you dont have endless loadtimes)

However that voriety is still not enough! It still needs a Portal gun, TF2 vanilla/custom weapons, the CSGO R8 revolver, the opposing force grappling hook, functional support for mounting games, L4D2 special infected, TFC/Fortress Forever physics & grenades and all gamemodes from all source/goldsrc games ever made, that be vanilla or community modes from each respective game!

A genuine critique is to improve the bot ai to ignore cloaked players in certain modes & make it so certain game objectives actually work. Also throwing grenades sucks in this game as your only options are a instant kamikaze or a delayed throw that cant be cancelled and will automatically go of regardless of how long or short time you hold the fire key.

Some good things is that you cant lower other's ranks in gun game and can switch between all weapons at will (though you'd score less without your highest current weapon)
The DM mode has occational random fun chaos effect that can either help you or screw you.
The remastered versions of Half Life 1 weapons are also appreciated and the menu music is my jam!