You will need to invite players to your party and load up a map. Should work on any actual gamemode (deathmatch, wingman, competitive...), this is more of a "modifier" than a gamemode (but gamemode sounds better)

Just paste this into the console! No sv_cheats used. You need to be hosting the server.

sv_bounce 12 - The main meat of the gamemode. Basically, turns walls and stuff into launchpads. There's a certain timing to it, and it's not very reliable, but it allows you to gain some big airspeed and surprise your enemies.

sv_enablebunnyhopping 1 - Allows you to go fast with bunnyhopping.

sv_autobunnyhopping 1 - Casual bunnyhopping! Feel free to disable it, I feel it's more fun when it's on. Basically, you don't have to spam jump, only hold it.

sv_airaccelerate 100 - Makes getting speed with bhopping easier.

sv_staminajumpcost 0;sv_staminalandcost 0;sv_staminamax 0;sv_staminarecoveryrate 0 - All of these disable stamina, a feature which limits how fast you can jump.

cl_showpos 1 - Each player can optionally enter this into their console, shows an overlay of your speed and stuff.

Best maps are ones with a lot open space and room.

• Lake - open and big, many rocks good for launch surfaces
  
• Mega Mirage - mirage but absolutely massive, tons of space for bouncing and ramps for launching

Most weapons should be alright if you land before shooting.

• Negev - when you encounter an enemy while bhopping: start shooting (they can't really hit you yet), land asap and u have a ready to go laser beam
  
• Dual Berettas - spammy and cheap, good for pistol rounds
  
• XM shotgun - great for close-up encounters, best used when bhopping close to a target
  
• Revolver - a good longer range sidearm if you're wielding shorter-range weapons

• Knowing bhopping basics helps a lot in this gamemode! Look up a simple guide or tutorial, but basically don't hold W when holding jump and press A when looking to the left and D when to the right.
  
• Really, bhopping is your best friend here, especially on mega maps. It's very hard to hit a fast-moving player, it makes for a great surprise attack, you can quickly travel to the other bombsite...
  
• The "sweet spot" for bouncing off of walls is the peak of your jump. Holding a knife also seems to help.
  
• From my testing, holding a knife mostly helps only during beginning a bhop, but it's way better to hold a weapon while bhopping, it doesn't affect speed almost at all and you're way safer in case of a sudden attack.
  
• Find rocks or other angled surfaces to launch yourself off of, these give a lot of vertical velocity allowing you to surprise enemies from above.
  
• Use stairs/ramps to your advantage to also launch yourself high up.