tldr: jump in, there are some tryhards but lower difficulty is way more fun

While spreading democracy it's more about the "how you spread it" more than "what you are using for it". You can have all the freedom you can have and still fail to deliver it because of wrong timing and so on. I'm still using the SG-8 Punisher (first weapon to receive from page 1 of the first warbond) despite being level 30ish. Know your enemies and their lies und you will be able to spread democracy and freedom even further down their throats.