Hi, welcome to GTA Wiki. Thanks for contributing to the Radio Los Santos page, and for taking interest in the wiki. Please leave a message on my talk page if I can help with anything, or as alternatives, leave a post on a forum, or refer to the Help pages. The Tom (talk) 21:44, October 7, 2013 (UTC)
In the case of the Combat MG, you were comparing the upgraded version of the weapon to other weapons: weapon articles should always refer to the stock version of weapons, unless referring to how the weapon might be improved. The same goes for vehicle articles.
In the case of the other two weapons, you will need to provide a source for your information, as such information may otherwise be disputed.
Please feel free to contact me on my Talk page if you wish to discuss my reversions. Thank you.