Graphics are simple, yet clear and nicely detailed, with nice touches such as little snakes crawling through the undergrowth and birds flying overhead adding to the jungle atmosphere. The soundtrack - while nothing mind blowing - also does the job, with each guy in your squad having a different voice and responding verbally to your commands.
As you progress though the levels, each different character's skills become useful at different times - the sniper's handy for picking off lone sentries before they can raise the alarm, for example, while RPG guy is especially useful when you're suddenly faced with a number of enemies dug in behind a bunker, and you've got the addition of grenades and medipacks for when the going gets tough, as well as the facility for calling in a limited number of airstrikes.