Complex sentence: With the intent of donning the dress, she enters a recruiting office, then realizes the posters on the wall advertise victory over the enemy; she leaves and angrily shoots at him instead, burning part of his face.
Split into simpler sentences: With the intention of donning the dress, she enters a recruiting office. Understanding the posters on the wall advertising victory over the enemy, she leaves and angrily shoots at the man instead, burning part of his face.