The original was better
I remeber an old DOS game like this. It had the parachutes opening as soon as the troops jumped. Combined with the bigger screen this gave more chances to destroy them. Also the troops stayed where they landed until the level was over and if you had let too many through they would destroy the base. Otherwise aliens abducted them. Plus the troops could be killed by debris, whether they were on the ground or in the air, so shooting the chopper after they dropped was likely to get them if you were fast enough. Had more enemies also. But there werent any upgrades.