This is another Dinamic spectrum conversion, what made me thinking these things in the eighties...
How good that game would have looked like, only if every software sprite vehicle (your jeep, trucks, helicopters, submarines) could have just one sprite on top of them to give them much needed colour... imagine how shiny and cool those vehicles could look after that!
Your own missiles should be still software sprites to make them visible. Explosions do look good anyway without any alteration!
But second stage (where you fly helicopter) has problem, as there is almost impossible to see all ground to air enemy bullets before they hit your helicopter! Maybe also software sprite enemy bullets should have sprites (flashing in different colours?) on top of them? But I think you cannot make enemy bullets using only sprites, because there can be so many bullets fired at you...
First stage bridge and clouds look good already .
Army Moves Part II ... I guess it would look too flickery if every soldier is sprite. Do I remember it correctly that there were many running enemy soldiers on screen at the same time? Maybe cleverly planned colourful software sprites... ?
This is good game which suffers badly because enemy bullets etc can be almost invisible in helicopter flying stage... I have never completed first part of game just because of that...
And I do not mind if there could be nice arrangement of whistling from the movie "The bridge on the river kwai"...
I was VERY disappointed to hear msx had different strange tune after playing Army moves on commodore 64 first.. (which of course had that "whistling" tune, actually it´s not like whistling on c64, but it´s that movie tune anyway) thought I was happy that there WAS in-game tune on MSX version anyway....
Karoshi has made one remake of Dinamic classic already... how about making another?