[Request] a gun using rocket launcher bullets (m33)

Okay i want something like this for a gun a rookie can use. (the first 2-3 rank guns). Also is there a way to shoot threw walls when using texture modding?

I'm sorry if this is advertising i'll try to find another video.

Edit:changed video.

dude its v.i.p gtfo out of here

stfu i never even knew if it was VIP or not. I rather wait for someone else to have a legit facts about this.
btw just so you know you just said get the eff out out of here. If your gonna use phrases use them right.