I actually find the Templar helmet on the blister quite silly... I changed their haor with chainmail and gave the new bullet helmet with the noseguard from the yellow lion knights.
Which is in period what foot soldiers would have worn.
Even cavalry didn't keep their Barrel Helms on for long, only while they charged,
then after they were a few rows in and stopped, they would throw the helmet back
(it had a chain attached so it wouldn't fall away)
And fight with a different helmet, with a better view.