Get a crossbow. Shoot it at someone to pin them up against the wall. Then, You can also weld things to eachother. Like a box and a human. Then they become conjoined.

Cheat mode:
Open Steam, go to your "Play Games" menu, and select Half-Life 2. Right click on it and select "Properties". Click the Launch Options button then type -console. Click "Ok", then close. Double click Half-Life 2 to start the game. Once it is loaded and you are playing, press the ~ key to bring up the console. Then, enter sv_cheats 1 and press [Enter]. You can now enter the following codes at the console window.

Also, any code can be used as a command line parameter by prefixing it with the "-" character. Note: For games that were downloaded from Steam, to use cheats in single player mode, start the game with the -applaunch -dev -tconsole command line parameter.

Effect - Code
God mode (server only) - god
Spawn indicated item - give
Reduce your health - buddha
Damage player - hurtme
All weapons - impulse 101
Skulls - impulse 102
Spawn a jeep - impulse 82
Spawn an air boat - impulse 83
Spawn a scout car - ch_createjeep
Spawn an airboat - ch_createairboat
Ignored by NPCs - notarget
Walk through objects (server only) - noclip
List maps - maps
Load indicated map - map

The cheats are the same as the last HL game.

1. Pull the console down with "~" and type sv_cheats (TAB) 1.Then enter.
2. Type Bind c "impulse 101".Then ruturn to the game then keep pressing "C" to get ammo and HEALTH.

I don't think There will be a cheat for armor. And if you use the cheat at the start of the game, later you HAVE to get the EVA suit. At That point, pull out the console and RESTART and it will put you outside the lab then go get the EVA suit then press "C" again to get Ammo and Health. It is fun, use the SMG. Use the right click to launch a grenade. It is fun watching people flying away.