Beat the game. I found the plasma weapon to be the most useful overall due to its range and spread. I found upgrades for the flamethrower first making it by far my most powerful weapon, so I ended up using it almost exclusively for a couple levels. Its lack of range proved to be a liability at times though, especially during bosses. I never used the basic gun at all and in fact it was my last weapon to level up. Later in the game I used the laser for boss killing and found the ionic weapon useful at times when there were durable enemies that took too long to kill with plasma mixed in with lots of weak enemies. I had to look up a guide to beat the final boss because I had not realized there were secondary bomb type weapons, and you need to use one to finish the boss.

I really liked how weapons do not replace each other, allowing you to switch to the most appropriate and how the jeep can shoot in 360 degrees. Even though I played solo, I liked the idea of the second player using a helicopter with different mechanics. Too bad you can't choose between the 2 vehicles in solo play.