Starship Troopers 3: Marauder

Instantly, you can tell that they've improved upon some of the flaws of the second movie.  There are way more appearances of bugs and the trooper's battles against them.  There's also more varied environments in which the movie takes place, which makes the movie seem less boring and less cheap (probably thanks to the increased budget to $20 million).  The battle that takes place in the first half hour was exciting and I was surprised at how long that battle was.  The bombardier bugs (i.e. grenades) was somewhat lame and stupid.  The CG were not that great (understandable given the low budget) and some of the movements of the bugs were awkward and stiff.  The story is somewhat similar to the second one in that there's a traitor amongst the troopers, but at least this is no zombie rip-off.  The introduction of several new bug types was good, although the scorpion one just looked too much like an oversized scorpion and didn't seem original enough.  Either way, they brought back the brain bug from the first movie, which was a great idea, but wasn't used that much in the end.  The ending was just random.  Despite Rico having a fair chunk of screentime at the start, he just disappears in the middle and comes back at the end in a robot suit.  They should have just taken out the robot suit as it's quite lame and fake (not to mention a bit odd).  It had seemed that the director gave up at the end with the dodgy cheesy effects and acting.