Are you still having problems getting players to find the incentives that you have placed around the map? Do players just walk past weapons laying around the map despite the eye catching techniques you used to draw attention to them? There’s more to getting people to notice things than just using color contrast. Have you ever thought about their attention being drawn elsewhere in that situation?
Point of Focus
When in a combat situation players are constantly maneuvering their focus to things that they feel require their attention at the time. If someone is shooting at them then their attention is drawn to that deterrent, not the weapon lying on the ground beside them. If the capture the flag waypoint is straight across the map then their attention is going to be towards the shortest path to get to it, not the sniper rifle that is sitting comfortably in a cupboard behind them. If there is a rocket launcher sitting high up on a pedestal with lights shining all over it they aren’t going to notice the hidden shortcut that is off to the side out of their view.
Standing in their shoes
When trying to draw attention to something think about the most likely places that a player is going to be; whether it is coming in through a doorway, hiding behind cover, or sitting at a control point. Now imagine the player’s current priorities and where their point of focus is; this could be any possible threats, any obvious incentives, the next objective, etc. Now in your mind draw a sample of their possible perspective based on their focus point and position. Use that as a guideline as to what the player is looking at. Place what you are trying to draw attention to in that perspective keeping in mind the rule of thirds, color contrast, and other eye catching techniques. If you know a player is moving around a lot, keep in mind the possible perspective variance and plan accordingly. This technique can be used in a variety of ways. You can use it for area introduction, deterrent warnings, incentive presentation, and other such instances. This is similar to the way that you setup spawn perspectives except that a spawn perspectives direction is always known. Perspective direction is about making an educated guess and imagining yourself as a player, not as the designer.
A third dimension
When considering a player’s perspective direction it is easy to keep in mind that they can be focused anywhere in front of them, behind them, or to either side of them. Most designers forget that there is a third dimension in most games. Imagine a ramp. If a player is sitting at the bottom of the ramp and their path map reads that they are likely to be going forward over that ramp where is the player’s focus point? It isn’t straight ahead because then their perspective is filled with the ramp. Their perspective direction is towards the area of highest possible threat. When sitting at the base of a ramp that area is typically the very top of the ramp. So placing an incentive at the very bottom of the ramp is probably not a good idea as it is out of the player’s perspective. Always put yourself in your player’s shoes. Remember that they don’t know your map like you do. So show them. See your creation from their eyes, not from yours.