This tutorial series is designed to show you some basic gameplay mechanics implemented in Construct 2. The code should be generic enough that almost all projects can use them (unless I tell you otherwise).
This video covers creating games with a set fire rate.
Fire Rate.zip - https://www.dropbox.com/s/71ixljsz696...
Final capx - https://www.dropbox.com/s/ierjskm8b0f...
Construct 2 Assets Package - http://www.scirra.com/freebundle.zip