Oh, Awesome.

I saw this commented out in the Pistols.ini and I was waiting for it

Here's a gif:

Most excellent!

Although I noticed a little bug. When a harpooned actor stays in the air for too long, the harpoons gibs and leaves the actor stuck there. Then the actor just shuffles its feet like crazy.

It gets pinned to the background!

Sweeeeeeet.

Nummy, we need moar!

Like water, and a giant white whale!

OH GOD YES.

Numgun, you have reached the max height of awesomeness.

Harpoon Cannon.... FIRE!

I'll be downloading this

I agree make a large Harpoon cannon (Made to pin mechs and the sort like your MPAM)

Hahah, the description reminds me of the advertisements about the Huntsman and the Jarate from the Spy vs. Sniper update.

Good job!

First: Pinning things! Yay!

Second, criticisms. First off, it moves way, way slow for something that's supposed to impale people. Second, it doesn't lose any momentum after catching someone, which isn't very realistic. Is there any way to attach it to an actor instead of attach an actor to it? Third, it can vacuum up and superimpose several actors in a row, which is just weird.

Now how about throwable knives that stick like this?

You so need to remake your Stakegun to have this effect, Painkiller-style.

I don't like the health drain, but, I could easily cut it out.

This is great, and apparently you can skewer many people with one harpoon!