The term 'assault gun' would have been quite wrong, 'assault rifle' would have been the correct one. I used neither. This is the third - and probably last - verse:
I've outlined all our actions
to further our cause
I don't fear their reactions
I don't respect their laws
I bombed their office building
and killed some dozen kids
I declare myself not guilty
I'm the true patriot
An alternative last line could be: "I don't rue what I did".
I'm not that proud about the repetition of the term 'cause', i.e. the 'good cause' in the first verse, and 'our cause' in the third. There are also several 'half rhymes' like 'building' - 'guilty', 'kids' - 'patriot' (maybe I should prefer the alternative line here), so maybe I'll shift and replace the odd line here and there. I'm also thinking about adding a last verse that should begin with the phrase "I'm the Knight Templar" yet again to put some more focus on the title, or maybe I'll just repeat the first verse at the end.