You suck at the game. No, I am joking. That early part is really hard. The game will get even harder as you go on. One tip: DON`T enter the houses. Entering them trigger the chainsaw (Dr. Salvador) guys. The scene ends after you kill a certain number of enemies. It is much better to stay outside and kill the ganados. Take it slow, shot one in the head, step back, shot another one in the head and so on. When you get better weapons these scenes will not be as tough.
"You are for ever angry, all you care about is intelligence, but I repeat again that I would give away all this superstellar life, all the ranks and honours, simply to be transformed into the soul of a merchant's wife weighing eighteen stone and set candles at God's shrine."