This Example map will show you how to make 3 different mouse-controlled guns/turrets in Counter-Strike: Source, resembling the old func_tanks from CS 1.6.

Edit 052311:

Upgrades!

-Combine Machine gun NOW works in MP game with bots. Used a different parenting method using a logic_measure_movement, where you place an env_spark on the same location as the info target, parent the env_spark to the gun, and then you use Logic_measure_movemement to use the env_spark to measure the location of the info_target. This workaround was brought to my attention by [frank] at interlopers. Thanks [frank]!
-Added trigger_hurt to Combine Masheen gun, so now it does damage! =)
-Added sound, and muzzleflash to Combine Masheen gun, following Waffle Turret Tutorial!

Rooom for Improvement

-Trigger_hurt for Combine Masheen Gun "times out" after like 4-5 seconds, in which case you simply take your finger off the mouse button and repress. Don't know why this happens, since it is set to Disble ONLY on UnpressedAttack.. =/
-get shell ejection to work on Combine Masheen Gun
-extending the range of the minigun
-help increasing the rate of fire of the 105mm cannon
-sometimes, the 105mm cannon bullets "bounce" off targets before exploding. Setting the flag "Break immediately on physics" solves this problem, but then, cannon rounds do no damage fsr..
-Would like to figure out how to "point" the turrets at a different direction than "east" once it spawns.

Note: this map is meant to be played in Counter-Strike: Source, but i use materials and models from HL2. All the content is included in the BSP using PackBSP, so if you needed to, you could extract the textures/models from it (when editing the vmf). DEVELOPMENT texture by Rimrook, and CT_DEV textures from my 3D palette based on that same texture by Rim

Minigun and 105mm Cannon

The 105mm Cannon and Minigun are built by EnnergyFilms. I modified them slightly improving the prefabs a bit(still far from done), and parenting the func_physbox to a base rather than being parented/measured by a trigger_multiple. He has downloads for the original prefabs in the full comments.

The 105mm Cannon's controls are a bit buggy, but they work fairly ok. I'm also trying to improve the explosive attributes of the shells, to make them more consistent in their destructive capability. Another thing i would like to add this is to make the shells rapid-fire.

The minigun works pretty good but has a limited range fsr.

If you have any ideas on how to make these better, please let me know!

Combine Masheen gun

This one I built from scratch, following a video tutorial by TopHattWaffle. (no example download available) Also i learned how to add sound, shell ejection, and a muzzle flash from Waffle's Waffle Turret tutorial. Thanks TophattWaffle!

This mouse-controlled turret by waffle, will behave almost exactly to the old func_tanks from cs 1.6!

A couple issues: I can't get the shell ejection to work and also, the trigger hurt will "time out" after like 4-5 seconds fsr. (works again on repressing the mouse button).

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I plan on using all these mouse-controllable turrets for care packages in my upcoming nuketown map. the minigun will be mounted on a moving Blackhawk helicopter and the rocket launcher will be meant to simulate a 105MM cannon on a circling AC-130 gunship.

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CHANGELOG

EDIT 051811:

Upgrades and fixes

• combine masheen gun parenting issue SOLVED. Manually parenting info_target to gun doesn't work. Instead, a logic_auto(OnSpawnMap - <info target name> - setparent - gun), solves the parenting glitch. (this is how waffle said to do it in the tutorial, but i screwed it up by ALSO manually parenting the info_target to the gun.

The above parenting method only works in a sp game loaded from the console. Once you create a server and add bots, it won't work anymore. Another workaround forthcoming.

Still Needs Work

-extending the range of the minigun
-help increasing the rate of fire of the 105mm cannon
-sometimes, the 105mm cannon bullets "bounce" off targets before exploding. Setting the flag "Break immediately on physics" solves this problem, but then, cannon rounds do no damage fsr..
-need to parent trigger_hurt to combine masheen gun. (env_gunfire does no damage by itself)

EDIT 051411:

Multiple Changes

-improved destructive consistency of 105mm cannon
-improved 105mm cannon model
-added spawns to test func_tank effectiveness against bots and destructible func_phsbox blocks
-fixed "make_triangles:calc_triangle_representation: Cannot convert" error
-PackBSP'd custom content to bsp(for those without HL2)

Still Needs Work

-extending the range of the minigun
-info_target parenting problem with combine masheen gun. (gun shoots at origin no matter what)
-help increasing the rate of fire of the 105mm cannon