yeah, i know. the 'shreck-team' is the last answer when having big problems. but i don't use 'em cause they are bugged. in early to mid game i work with pak's and panzerfausts. maybe you can try that.
but i guess you are playing the 6th army, which has to be played a little bit tricky until you get a tank.
hmm, if this map isn't yours you should try another one 'till you're more familiar with botb.