Three TC Questions (1) Continuous Delivery (2) MS Test and integrate (3) TC and c# script

FYI, support isn't usually here.  The technical team is but users often beat them to the questions/answers.  

For the TeamCity question:

https://community.smartbear.com/t5/Functional-Web-Testing/Integration-with-TeamCity-from-JetBrains/td-p/70708

For the unit testing question:

https://support.smartbear.com/viewarticle/82675/

For the C# question:

https://support.smartbear.com/viewarticle/84811/

Here's some more details from a new post:  

https://community.smartbear.com/t5/General-Discussions/TestComplete-Q-amp-A-Topics-8-23/m-p/125600

For ease of discussion, it's usually better if you put one question in one post.  It's hard to track what's going on if there are multiple questions and answers going on in the thread. ;)