Can anyone give me some helpfull Совет 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 Ты have to unlock is by 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 Вопрос is that if any of Ты out there played или still plays this game could Ты give me some helpfull hints или Совет on how to win?