You literally denied a better suggestion earlier because of icon size and now are trying to use icon size changes to further your own point now.
We've seen the icons, and they only make sense to you and you alone, you've also put them in the most recognisable, high contrast display zone, and not in a group of units, different colours, the outside outline, or on different terrain backgrounds. "great"
if we just threw these said icons in, how many people do you think will understand what the icons mean within their first two tries?
I don't know how much i need to explain to get through to you that you're making a step in the wrong direction here so i dug up some semi related articles about icon design for you.
http://www.givegoodux.com/the-right-way ... n-your-ui/
https://www.nngroup.com/articles/bad-icons/
https://www.nngroup.com/articles/icon-t ... pt=article
http://turbomilk.com/blog/cookbook/icon ... on_design/
enjoy.
also, don't act like everyone who disagrees with you are misinformed