Can anyone give me some helpfull advice on something?

Here is the headline: I have just started playing this classical video game for the Playstation called "Warpath Jurassic Park". And I am having the slightest troule with something.

One of the little exclusives u have to unlock is door completing "survival" mode and win through it all. My proublem is that no matter how hard I try to play it my way I keep on loosing and it's very frustrating plus irrtating.

My vraag is that if any of u out there played of still plays this game could u give me some helpfull hints of advice on how to win?