I tried your remake...and I think it's very stylistic--but it needs a little bit of maths and calculation to back engineer exactly how many shots it takes to take down a hornet shield and how long one takes to recharge, etc...
WC1 had a very delicate balance with how fast shields recharge and how little damage they took ,etc...
you could literally take a dralthi out with 7 well timed shots... or 1.4 missiles

not just 1...
details like that would be an excellent place to focus before adding more features...