Lorient is now on 17th place, just one point above from relegation zone. So in my opinion they must attack in this game, they shouldn't play defensive. In last month Lorient is in growing form, and they was involved several times in some high-scoring games. They played 3 games in last 5 with over 3.5 goals.
Lyon is now on first place, and yesterday their followers on second and third place (Monaco and Mareseille) played draw so Lyon have now great chance to run more than 3 points from them. Lyon played last week against PSG with result 1-1, but now against weak team Lorient, it is great chance to score several goals.