What do I use to construct objects? Options

[FloppySovereign]

Okay, I'm totally new to this, as In creates an account 2 hours ago, and I have been looking around at the different topics and so fourth, anywho, I've had some ideas and have drawn sketches of some units that could be added into the game, plus some new sound effects that I've managed to get a hold of that would suite units better than previous.

What I am wondering is what I would use to create units, and to attach sound effects and all of that, ads I said, I'm totally new to this and browsing the Internet to try to find something suitable has really been a waste of time. From what I've read you all seem like decent people, I haven't met anyone yet, but I don't think this will be like other modding sites, where the noobs are shoved off; no one willing to help and so on, all I'm asking is that someone can help me out?