help for commando gear

[Nopanda]

Hi, i'm quite new to the world of infantry, i reached tier4 and now i really don't know what items should i aim for. I currently have swadian kite shield, strange sword, iron mace, armor and helm are the marketplace ones, and i'd like to become a RG after i finished grinding for the exp and gold necessary. I assume i should aim for a good armor and shield in the first place and i think i'll keep my current shield before going straight for aegis, but i really don't know what to do with armor, there are so many and it's hard to choose something in the mix. Is there any medium/high tier armor that doesn't cost many millions (something like bear armour for archers before they get tracker)? And finally, any suggestions for weapons? I'm currently trying to be useful slashing behind the shieldwall (i'm rarely the best shielder aviable if i'm not playing normal) i went for iron mace for the sweet blunt damage type, but don't know if there's a cheap upgrade to that, it's still markeplace stuff afterall.

Looking forward to your suggestions, thanks!